Home / 83,663.15-115,455.29-45,422.70

Finding the Fourth Proportional to 83,663.15, 115,455.29 and 45,422.70

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Solution

The fourth proportional to 83,663.15, 115,455.29 and 45,422.70 is: 62,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,663.15 : 115,455.29 = 45,422.70 : x
  2. Step 2: Convert to fraction form
    83,663.15/115,455.29 = 45,422.70/x
  3. Step 3: Cross multiply
    83,663.15x = 115,455.29 × 45,422.70
  4. Step 4: Simplify right side
    83,663.15x = 5,244,290,773.97
  5. Step 5: Solve for x
    x = 5,244,290,773.97/83,663.15
  6. Step 6: Final answer
    x = 62,683.40

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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.