Home / 48,330.30-72,487.10-12,791.86

Finding the Fourth Proportional to 48,330.30, 72,487.10 and 12,791.86

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Solution

The fourth proportional to 48,330.30, 72,487.10 and 12,791.86 is: 19,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,330.30 : 72,487.10 = 12,791.86 : x
  2. Step 2: Convert to fraction form
    48,330.30/72,487.10 = 12,791.86/x
  3. Step 3: Cross multiply
    48,330.30x = 72,487.10 × 12,791.86
  4. Step 4: Simplify right side
    48,330.30x = 927,244,685.77
  5. Step 5: Solve for x
    x = 927,244,685.77/48,330.30
  6. Step 6: Final answer
    x = 19,185.58

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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.