Home / 48,731.52-72,948.24-31,218.24

Finding the Fourth Proportional to 48,731.52, 72,948.24 and 31,218.24

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Solution

The fourth proportional to 48,731.52, 72,948.24 and 31,218.24 is: 46,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,731.52 : 72,948.24 = 31,218.24 : x
  2. Step 2: Convert to fraction form
    48,731.52/72,948.24 = 31,218.24/x
  3. Step 3: Cross multiply
    48,731.52x = 72,948.24 × 31,218.24
  4. Step 4: Simplify right side
    48,731.52x = 2,277,315,663.90
  5. Step 5: Solve for x
    x = 2,277,315,663.90/48,731.52
  6. Step 6: Final answer
    x = 46,731.88

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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.