Home / 72,272.10-108,407.55-56,490.39

Finding the Fourth Proportional to 72,272.10, 108,407.55 and 56,490.39

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Solution

The fourth proportional to 72,272.10, 108,407.55 and 56,490.39 is: 84,735.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,272.10 : 108,407.55 = 56,490.39 : x
  2. Step 2: Convert to fraction form
    72,272.10/108,407.55 = 56,490.39/x
  3. Step 3: Cross multiply
    72,272.10x = 108,407.55 × 56,490.39
  4. Step 4: Simplify right side
    72,272.10x = 6,123,984,778.44
  5. Step 5: Solve for x
    x = 6,123,984,778.44/72,272.10
  6. Step 6: Final answer
    x = 84,735.12

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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.