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Finding the Fourth Proportional to 66,302.70, 99,454.05 and 60,397.80

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Solution

The fourth proportional to 66,302.70, 99,454.05 and 60,397.80 is: 90,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,302.70 : 99,454.05 = 60,397.80 : x
  2. Step 2: Convert to fraction form
    66,302.70/99,454.05 = 60,397.80/x
  3. Step 3: Cross multiply
    66,302.70x = 99,454.05 × 60,397.80
  4. Step 4: Simplify right side
    66,302.70x = 6,006,805,821.09
  5. Step 5: Solve for x
    x = 6,006,805,821.09/66,302.70
  6. Step 6: Final answer
    x = 90,596.70

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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.