Home / 61,177.20-91,765.80-45,625.20

Finding the Fourth Proportional to 61,177.20, 91,765.80 and 45,625.20

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Solution

The fourth proportional to 61,177.20, 91,765.80 and 45,625.20 is: 68,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,177.20 : 91,765.80 = 45,625.20 : x
  2. Step 2: Convert to fraction form
    61,177.20/91,765.80 = 45,625.20/x
  3. Step 3: Cross multiply
    61,177.20x = 91,765.80 × 45,625.20
  4. Step 4: Simplify right side
    61,177.20x = 4,186,832,978.16
  5. Step 5: Solve for x
    x = 4,186,832,978.16/61,177.20
  6. Step 6: Final answer
    x = 68,437.80

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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.