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Finding the Fourth Proportional to 75,369.87, 112,906.96 and 43,713.42

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Solution

The fourth proportional to 75,369.87, 112,906.96 and 43,713.42 is: 65,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,369.87 : 112,906.96 = 43,713.42 : x
  2. Step 2: Convert to fraction form
    75,369.87/112,906.96 = 43,713.42/x
  3. Step 3: Cross multiply
    75,369.87x = 112,906.96 × 43,713.42
  4. Step 4: Simplify right side
    75,369.87x = 4,935,549,711.71
  5. Step 5: Solve for x
    x = 4,935,549,711.71/75,369.87
  6. Step 6: Final answer
    x = 65,484.39

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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.