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Finding the Fourth Proportional to 129,063.32, 193,622.32 and 40,323.52

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Solution

The fourth proportional to 129,063.32, 193,622.32 and 40,323.52 is: 60,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,063.32 : 193,622.32 = 40,323.52 : x
  2. Step 2: Convert to fraction form
    129,063.32/193,622.32 = 40,323.52/x
  3. Step 3: Cross multiply
    129,063.32x = 193,622.32 × 40,323.52
  4. Step 4: Simplify right side
    129,063.32x = 7,807,533,898.81
  5. Step 5: Solve for x
    x = 7,807,533,898.81/129,063.32
  6. Step 6: Final answer
    x = 60,493.82

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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.