Home / 48,479.60-72,687-39,131.12

Finding the Fourth Proportional to 48,479.60, 72,687 and 39,131.12

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Solution

The fourth proportional to 48,479.60, 72,687 and 39,131.12 is: 58,670.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,479.60 : 72,687 = 39,131.12 : x
  2. Step 2: Convert to fraction form
    48,479.60/72,687 = 39,131.12/x
  3. Step 3: Cross multiply
    48,479.60x = 72,687 × 39,131.12
  4. Step 4: Simplify right side
    48,479.60x = 2,844,323,719.44
  5. Step 5: Solve for x
    x = 2,844,323,719.44/48,479.60
  6. Step 6: Final answer
    x = 58,670.53

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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.