Home / 72,511.68-108,779.04-30,959.04

Finding the Fourth Proportional to 72,511.68, 108,779.04 and 30,959.04

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Solution

The fourth proportional to 72,511.68, 108,779.04 and 30,959.04 is: 46,443.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,511.68 : 108,779.04 = 30,959.04 : x
  2. Step 2: Convert to fraction form
    72,511.68/108,779.04 = 30,959.04/x
  3. Step 3: Cross multiply
    72,511.68x = 108,779.04 × 30,959.04
  4. Step 4: Simplify right side
    72,511.68x = 3,367,694,650.52
  5. Step 5: Solve for x
    x = 3,367,694,650.52/72,511.68
  6. Step 6: Final answer
    x = 46,443.48

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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.