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Finding the Fourth Proportional to 81,609.87, 122,437.67 and 29,024.67

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Solution

The fourth proportional to 81,609.87, 122,437.67 and 29,024.67 is: 43,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,609.87 : 122,437.67 = 29,024.67 : x
  2. Step 2: Convert to fraction form
    81,609.87/122,437.67 = 29,024.67/x
  3. Step 3: Cross multiply
    81,609.87x = 122,437.67 × 29,024.67
  4. Step 4: Simplify right side
    81,609.87x = 3,553,712,822.20
  5. Step 5: Solve for x
    x = 3,553,712,822.20/81,609.87
  6. Step 6: Final answer
    x = 43,545.14

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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.