Home / 72,511.85-108,810.84-39,231.18

Finding the Fourth Proportional to 72,511.85, 108,810.84 and 39,231.18

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Solution

The fourth proportional to 72,511.85, 108,810.84 and 39,231.18 is: 58,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,511.85 : 108,810.84 = 39,231.18 : x
  2. Step 2: Convert to fraction form
    72,511.85/108,810.84 = 39,231.18/x
  3. Step 3: Cross multiply
    72,511.85x = 108,810.84 × 39,231.18
  4. Step 4: Simplify right side
    72,511.85x = 4,268,777,160.06
  5. Step 5: Solve for x
    x = 4,268,777,160.06/72,511.85
  6. Step 6: Final answer
    x = 58,870.06

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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.