Home / 83,632.74-115,412.19-45,392.35

Finding the Fourth Proportional to 83,632.74, 115,412.19 and 45,392.35

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Solution

The fourth proportional to 83,632.74, 115,412.19 and 45,392.35 is: 62,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,632.74 : 115,412.19 = 45,392.35 : x
  2. Step 2: Convert to fraction form
    83,632.74/115,412.19 = 45,392.35/x
  3. Step 3: Cross multiply
    83,632.74x = 115,412.19 × 45,392.35
  4. Step 4: Simplify right side
    83,632.74x = 5,238,830,522.75
  5. Step 5: Solve for x
    x = 5,238,830,522.75/83,632.74
  6. Step 6: Final answer
    x = 62,640.91

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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.