Home / 96,931.20-133,755.84-56,654.40

Finding the Fourth Proportional to 96,931.20, 133,755.84 and 56,654.40

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Solution

The fourth proportional to 96,931.20, 133,755.84 and 56,654.40 is: 78,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,931.20 : 133,755.84 = 56,654.40 : x
  2. Step 2: Convert to fraction form
    96,931.20/133,755.84 = 56,654.40/x
  3. Step 3: Cross multiply
    96,931.20x = 133,755.84 × 56,654.40
  4. Step 4: Simplify right side
    96,931.20x = 7,577,856,861.70
  5. Step 5: Solve for x
    x = 7,577,856,861.70/96,931.20
  6. Step 6: Final answer
    x = 78,177.69

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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.