Home / 51,539.38-71,108.18-28,875.30

Finding the Fourth Proportional to 51,539.38, 71,108.18 and 28,875.30

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Solution

The fourth proportional to 51,539.38, 71,108.18 and 28,875.30 is: 39,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,539.38 : 71,108.18 = 28,875.30 : x
  2. Step 2: Convert to fraction form
    51,539.38/71,108.18 = 28,875.30/x
  3. Step 3: Cross multiply
    51,539.38x = 71,108.18 × 28,875.30
  4. Step 4: Simplify right side
    51,539.38x = 2,053,270,029.95
  5. Step 5: Solve for x
    x = 2,053,270,029.95/51,539.38
  6. Step 6: Final answer
    x = 39,838.86

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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.