Home / 51,539.40-71,108.16-28,875.30

Finding the Fourth Proportional to 51,539.40, 71,108.16 and 28,875.30

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Solution

The fourth proportional to 51,539.40, 71,108.16 and 28,875.30 is: 39,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,539.40 : 71,108.16 = 28,875.30 : x
  2. Step 2: Convert to fraction form
    51,539.40/71,108.16 = 28,875.30/x
  3. Step 3: Cross multiply
    51,539.40x = 71,108.16 × 28,875.30
  4. Step 4: Simplify right side
    51,539.40x = 2,053,269,452.45
  5. Step 5: Solve for x
    x = 2,053,269,452.45/51,539.40
  6. Step 6: Final answer
    x = 39,838.83

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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.