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Finding the Fourth Proportional to 72,592.62, 100,177.47 and 40,764.30

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Solution

The fourth proportional to 72,592.62, 100,177.47 and 40,764.30 is: 56,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.62 : 100,177.47 = 40,764.30 : x
  2. Step 2: Convert to fraction form
    72,592.62/100,177.47 = 40,764.30/x
  3. Step 3: Cross multiply
    72,592.62x = 100,177.47 × 40,764.30
  4. Step 4: Simplify right side
    72,592.62x = 4,083,664,440.32
  5. Step 5: Solve for x
    x = 4,083,664,440.32/72,592.62
  6. Step 6: Final answer
    x = 56,254.54

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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.