Home / 66,311.28-99,466.92-19,553.22

Finding the Fourth Proportional to 66,311.28, 99,466.92 and 19,553.22

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Solution

The fourth proportional to 66,311.28, 99,466.92 and 19,553.22 is: 29,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,311.28 : 99,466.92 = 19,553.22 : x
  2. Step 2: Convert to fraction form
    66,311.28/99,466.92 = 19,553.22/x
  3. Step 3: Cross multiply
    66,311.28x = 99,466.92 × 19,553.22
  4. Step 4: Simplify right side
    66,311.28x = 1,944,898,569.48
  5. Step 5: Solve for x
    x = 1,944,898,569.48/66,311.28
  6. Step 6: Final answer
    x = 29,329.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.