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Finding the Fourth Proportional to 89,166.40, 133,730.40 and 39,246.40

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Solution

The fourth proportional to 89,166.40, 133,730.40 and 39,246.40 is: 58,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,166.40 : 133,730.40 = 39,246.40 : x
  2. Step 2: Convert to fraction form
    89,166.40/133,730.40 = 39,246.40/x
  3. Step 3: Cross multiply
    89,166.40x = 133,730.40 × 39,246.40
  4. Step 4: Simplify right side
    89,166.40x = 5,248,436,770.56
  5. Step 5: Solve for x
    x = 5,248,436,770.56/89,166.40
  6. Step 6: Final answer
    x = 58,861.15

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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.