Home / 48,073.11-72,113.78-12,539.16

Finding the Fourth Proportional to 48,073.11, 72,113.78 and 12,539.16

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Solution

The fourth proportional to 48,073.11, 72,113.78 and 12,539.16 is: 18,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,073.11 : 72,113.78 = 12,539.16 : x
  2. Step 2: Convert to fraction form
    48,073.11/72,113.78 = 12,539.16/x
  3. Step 3: Cross multiply
    48,073.11x = 72,113.78 × 12,539.16
  4. Step 4: Simplify right side
    48,073.11x = 904,246,225.62
  5. Step 5: Solve for x
    x = 904,246,225.62/48,073.11
  6. Step 6: Final answer
    x = 18,809.81

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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.