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Finding the Fourth Proportional to 89,358.53, 133,833.65 and 42,644.21

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Solution

The fourth proportional to 89,358.53, 133,833.65 and 42,644.21 is: 63,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,358.53 : 133,833.65 = 42,644.21 : x
  2. Step 2: Convert to fraction form
    89,358.53/133,833.65 = 42,644.21/x
  3. Step 3: Cross multiply
    89,358.53x = 133,833.65 × 42,644.21
  4. Step 4: Simplify right side
    89,358.53x = 5,707,229,393.28
  5. Step 5: Solve for x
    x = 5,707,229,393.28/89,358.53
  6. Step 6: Final answer
    x = 63,868.89

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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.