Home / 40,972.80-61,394.40-34,363.20

Finding the Fourth Proportional to 40,972.80, 61,394.40 and 34,363.20

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Solution

The fourth proportional to 40,972.80, 61,394.40 and 34,363.20 is: 51,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,972.80 : 61,394.40 = 34,363.20 : x
  2. Step 2: Convert to fraction form
    40,972.80/61,394.40 = 34,363.20/x
  3. Step 3: Cross multiply
    40,972.80x = 61,394.40 × 34,363.20
  4. Step 4: Simplify right side
    40,972.80x = 2,109,708,046.08
  5. Step 5: Solve for x
    x = 2,109,708,046.08/40,972.80
  6. Step 6: Final answer
    x = 51,490.45

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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.