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Finding the Fourth Proportional to 89,838.90, 134,734.05 and 26,658.90

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Solution

The fourth proportional to 89,838.90, 134,734.05 and 26,658.90 is: 39,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,838.90 : 134,734.05 = 26,658.90 : x
  2. Step 2: Convert to fraction form
    89,838.90/134,734.05 = 26,658.90/x
  3. Step 3: Cross multiply
    89,838.90x = 134,734.05 × 26,658.90
  4. Step 4: Simplify right side
    89,838.90x = 3,591,861,565.55
  5. Step 5: Solve for x
    x = 3,591,861,565.55/89,838.90
  6. Step 6: Final answer
    x = 39,981.14

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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.