Home / 72,508.16-100,052.52-40,242.62

Finding the Fourth Proportional to 72,508.16, 100,052.52 and 40,242.62

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Solution

The fourth proportional to 72,508.16, 100,052.52 and 40,242.62 is: 55,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508.16 : 100,052.52 = 40,242.62 : x
  2. Step 2: Convert to fraction form
    72,508.16/100,052.52 = 40,242.62/x
  3. Step 3: Cross multiply
    72,508.16x = 100,052.52 × 40,242.62
  4. Step 4: Simplify right side
    72,508.16x = 4,026,375,641.62
  5. Step 5: Solve for x
    x = 4,026,375,641.62/72,508.16
  6. Step 6: Final answer
    x = 55,529.96

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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.