Home / 52,154.08-78,192.24-31,372.72

Finding the Fourth Proportional to 52,154.08, 78,192.24 and 31,372.72

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Solution

The fourth proportional to 52,154.08, 78,192.24 and 31,372.72 is: 47,035.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,154.08 : 78,192.24 = 31,372.72 : x
  2. Step 2: Convert to fraction form
    52,154.08/78,192.24 = 31,372.72/x
  3. Step 3: Cross multiply
    52,154.08x = 78,192.24 × 31,372.72
  4. Step 4: Simplify right side
    52,154.08x = 2,453,103,251.69
  5. Step 5: Solve for x
    x = 2,453,103,251.69/52,154.08
  6. Step 6: Final answer
    x = 47,035.69

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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.