Home / 83,859.19-115,727.78-45,620.89

Finding the Fourth Proportional to 83,859.19, 115,727.78 and 45,620.89

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Solution

The fourth proportional to 83,859.19, 115,727.78 and 45,620.89 is: 62,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,859.19 : 115,727.78 = 45,620.89 : x
  2. Step 2: Convert to fraction form
    83,859.19/115,727.78 = 45,620.89/x
  3. Step 3: Cross multiply
    83,859.19x = 115,727.78 × 45,620.89
  4. Step 4: Simplify right side
    83,859.19x = 5,279,604,146.06
  5. Step 5: Solve for x
    x = 5,279,604,146.06/83,859.19
  6. Step 6: Final answer
    x = 62,957.97

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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.