Home / 80,541.18-111,129.93-48,703.86

Finding the Fourth Proportional to 80,541.18, 111,129.93 and 48,703.86

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Solution

The fourth proportional to 80,541.18, 111,129.93 and 48,703.86 is: 67,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.18 : 111,129.93 = 48,703.86 : x
  2. Step 2: Convert to fraction form
    80,541.18/111,129.93 = 48,703.86/x
  3. Step 3: Cross multiply
    80,541.18x = 111,129.93 × 48,703.86
  4. Step 4: Simplify right side
    80,541.18x = 5,412,456,552.53
  5. Step 5: Solve for x
    x = 5,412,456,552.53/80,541.18
  6. Step 6: Final answer
    x = 67,201.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.