Home / 48,480.74-72,691.32-18,864.04

Finding the Fourth Proportional to 48,480.74, 72,691.32 and 18,864.04

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Solution

The fourth proportional to 48,480.74, 72,691.32 and 18,864.04 is: 28,284.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,480.74 : 72,691.32 = 18,864.04 : x
  2. Step 2: Convert to fraction form
    48,480.74/72,691.32 = 18,864.04/x
  3. Step 3: Cross multiply
    48,480.74x = 72,691.32 × 18,864.04
  4. Step 4: Simplify right side
    48,480.74x = 1,371,251,968.13
  5. Step 5: Solve for x
    x = 1,371,251,968.13/48,480.74
  6. Step 6: Final answer
    x = 28,284.47

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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.