Home / 71,875.22-99,189.77-40,046.20

Finding the Fourth Proportional to 71,875.22, 99,189.77 and 40,046.20

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Solution

The fourth proportional to 71,875.22, 99,189.77 and 40,046.20 is: 55,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,875.22 : 99,189.77 = 40,046.20 : x
  2. Step 2: Convert to fraction form
    71,875.22/99,189.77 = 40,046.20/x
  3. Step 3: Cross multiply
    71,875.22x = 99,189.77 × 40,046.20
  4. Step 4: Simplify right side
    71,875.22x = 3,972,172,919.17
  5. Step 5: Solve for x
    x = 3,972,172,919.17/71,875.22
  6. Step 6: Final answer
    x = 55,264.85

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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.