Home / 48,502.09-72,780.41-18,921.97

Finding the Fourth Proportional to 48,502.09, 72,780.41 and 18,921.97

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Solution

The fourth proportional to 48,502.09, 72,780.41 and 18,921.97 is: 28,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,502.09 : 72,780.41 = 18,921.97 : x
  2. Step 2: Convert to fraction form
    48,502.09/72,780.41 = 18,921.97/x
  3. Step 3: Cross multiply
    48,502.09x = 72,780.41 × 18,921.97
  4. Step 4: Simplify right side
    48,502.09x = 1,377,148,734.61
  5. Step 5: Solve for x
    x = 1,377,148,734.61/48,502.09
  6. Step 6: Final answer
    x = 28,393.60

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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.