Home / 91,775.20-137,712.98-35,617.54

Finding the Fourth Proportional to 91,775.20, 137,712.98 and 35,617.54

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Solution

The fourth proportional to 91,775.20, 137,712.98 and 35,617.54 is: 53,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,775.20 : 137,712.98 = 35,617.54 : x
  2. Step 2: Convert to fraction form
    91,775.20/137,712.98 = 35,617.54/x
  3. Step 3: Cross multiply
    91,775.20x = 137,712.98 × 35,617.54
  4. Step 4: Simplify right side
    91,775.20x = 4,904,997,573.67
  5. Step 5: Solve for x
    x = 4,904,997,573.67/91,775.20
  6. Step 6: Final answer
    x = 53,445.78

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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.