Home / 87,140.31-120,242.12-48,898.46

Finding the Fourth Proportional to 87,140.31, 120,242.12 and 48,898.46

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Solution

The fourth proportional to 87,140.31, 120,242.12 and 48,898.46 is: 67,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,140.31 : 120,242.12 = 48,898.46 : x
  2. Step 2: Convert to fraction form
    87,140.31/120,242.12 = 48,898.46/x
  3. Step 3: Cross multiply
    87,140.31x = 120,242.12 × 48,898.46
  4. Step 4: Simplify right side
    87,140.31x = 5,879,653,649.43
  5. Step 5: Solve for x
    x = 5,879,653,649.43/87,140.31
  6. Step 6: Final answer
    x = 67,473.41

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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.