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Finding the Fourth Proportional to 89,666.60, 134,499.90 and 43,010.60

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Solution

The fourth proportional to 89,666.60, 134,499.90 and 43,010.60 is: 64,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,666.60 : 134,499.90 = 43,010.60 : x
  2. Step 2: Convert to fraction form
    89,666.60/134,499.90 = 43,010.60/x
  3. Step 3: Cross multiply
    89,666.60x = 134,499.90 × 43,010.60
  4. Step 4: Simplify right side
    89,666.60x = 5,784,921,398.94
  5. Step 5: Solve for x
    x = 5,784,921,398.94/89,666.60
  6. Step 6: Final answer
    x = 64,515.90

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Similar ratio
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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.