Home / 48,115.89-72,188.42-21,813.57

Finding the Fourth Proportional to 48,115.89, 72,188.42 and 21,813.57

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Solution

The fourth proportional to 48,115.89, 72,188.42 and 21,813.57 is: 32,726.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,115.89 : 72,188.42 = 21,813.57 : x
  2. Step 2: Convert to fraction form
    48,115.89/72,188.42 = 21,813.57/x
  3. Step 3: Cross multiply
    48,115.89x = 72,188.42 × 21,813.57
  4. Step 4: Simplify right side
    48,115.89x = 1,574,687,043.79
  5. Step 5: Solve for x
    x = 1,574,687,043.79/48,115.89
  6. Step 6: Final answer
    x = 32,726.96

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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.