Home / 48,178.52-72,242.88-21,149.80

Finding the Fourth Proportional to 48,178.52, 72,242.88 and 21,149.80

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Solution

The fourth proportional to 48,178.52, 72,242.88 and 21,149.80 is: 31,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,178.52 : 72,242.88 = 21,149.80 : x
  2. Step 2: Convert to fraction form
    48,178.52/72,242.88 = 21,149.80/x
  3. Step 3: Cross multiply
    48,178.52x = 72,242.88 × 21,149.80
  4. Step 4: Simplify right side
    48,178.52x = 1,527,922,463.42
  5. Step 5: Solve for x
    x = 1,527,922,463.42/48,178.52
  6. Step 6: Final answer
    x = 31,713.77

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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.