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Finding the Fourth Proportional to 89,003.70, 133,509.65 and 49,531.08

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Solution

The fourth proportional to 89,003.70, 133,509.65 and 49,531.08 is: 74,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,003.70 : 133,509.65 = 49,531.08 : x
  2. Step 2: Convert to fraction form
    89,003.70/133,509.65 = 49,531.08/x
  3. Step 3: Cross multiply
    89,003.70x = 133,509.65 × 49,531.08
  4. Step 4: Simplify right side
    89,003.70x = 6,612,877,154.92
  5. Step 5: Solve for x
    x = 6,612,877,154.92/89,003.70
  6. Step 6: Final answer
    x = 74,298.90

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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.