Home / 83,451.48-115,162.32-45,210.12

Finding the Fourth Proportional to 83,451.48, 115,162.32 and 45,210.12

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Solution

The fourth proportional to 83,451.48, 115,162.32 and 45,210.12 is: 62,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,451.48 : 115,162.32 = 45,210.12 : x
  2. Step 2: Convert to fraction form
    83,451.48/115,162.32 = 45,210.12/x
  3. Step 3: Cross multiply
    83,451.48x = 115,162.32 × 45,210.12
  4. Step 4: Simplify right side
    83,451.48x = 5,206,502,306.68
  5. Step 5: Solve for x
    x = 5,206,502,306.68/83,451.48
  6. Step 6: Final answer
    x = 62,389.57

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.