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Finding the Fourth Proportional to 89,626.92, 134,440.40 and 36,978.56

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Solution

The fourth proportional to 89,626.92, 134,440.40 and 36,978.56 is: 55,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,626.92 : 134,440.40 = 36,978.56 : x
  2. Step 2: Convert to fraction form
    89,626.92/134,440.40 = 36,978.56/x
  3. Step 3: Cross multiply
    89,626.92x = 134,440.40 × 36,978.56
  4. Step 4: Simplify right side
    89,626.92x = 4,971,412,397.82
  5. Step 5: Solve for x
    x = 4,971,412,397.82/89,626.92
  6. Step 6: Final answer
    x = 55,467.85

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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.