Home / 83,521.50-115,313.43-74,553.66

Finding the Fourth Proportional to 83,521.50, 115,313.43 and 74,553.66

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Solution

The fourth proportional to 83,521.50, 115,313.43 and 74,553.66 is: 102,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,521.50 : 115,313.43 = 74,553.66 : x
  2. Step 2: Convert to fraction form
    83,521.50/115,313.43 = 74,553.66/x
  3. Step 3: Cross multiply
    83,521.50x = 115,313.43 × 74,553.66
  4. Step 4: Simplify right side
    83,521.50x = 8,597,038,253.65
  5. Step 5: Solve for x
    x = 8,597,038,253.65/83,521.50
  6. Step 6: Final answer
    x = 102,932.04

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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.