Home / 81,581.10-112,580.19-45,779.82

Finding the Fourth Proportional to 81,581.10, 112,580.19 and 45,779.82

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Solution

The fourth proportional to 81,581.10, 112,580.19 and 45,779.82 is: 63,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,581.10 : 112,580.19 = 45,779.82 : x
  2. Step 2: Convert to fraction form
    81,581.10/112,580.19 = 45,779.82/x
  3. Step 3: Cross multiply
    81,581.10x = 112,580.19 × 45,779.82
  4. Step 4: Simplify right side
    81,581.10x = 5,153,900,833.77
  5. Step 5: Solve for x
    x = 5,153,900,833.77/81,581.10
  6. Step 6: Final answer
    x = 63,175.18

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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.