Home / 81,779.64-122,577.12-41,686.02

Finding the Fourth Proportional to 81,779.64, 122,577.12 and 41,686.02

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Solution

The fourth proportional to 81,779.64, 122,577.12 and 41,686.02 is: 62,481.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,779.64 : 122,577.12 = 41,686.02 : x
  2. Step 2: Convert to fraction form
    81,779.64/122,577.12 = 41,686.02/x
  3. Step 3: Cross multiply
    81,779.64x = 122,577.12 × 41,686.02
  4. Step 4: Simplify right side
    81,779.64x = 5,109,752,275.86
  5. Step 5: Solve for x
    x = 5,109,752,275.86/81,779.64
  6. Step 6: Final answer
    x = 62,481.96

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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.