Home / 83,728.38-115,547.30-45,487.55

Finding the Fourth Proportional to 83,728.38, 115,547.30 and 45,487.55

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Solution

The fourth proportional to 83,728.38, 115,547.30 and 45,487.55 is: 62,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,728.38 : 115,547.30 = 45,487.55 : x
  2. Step 2: Convert to fraction form
    83,728.38/115,547.30 = 45,487.55/x
  3. Step 3: Cross multiply
    83,728.38x = 115,547.30 × 45,487.55
  4. Step 4: Simplify right side
    83,728.38x = 5,255,963,429.18
  5. Step 5: Solve for x
    x = 5,255,963,429.18/83,728.38
  6. Step 6: Final answer
    x = 62,773.97

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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.