Home / 84,812.20-127,218.30-49,791.40

Finding the Fourth Proportional to 84,812.20, 127,218.30 and 49,791.40

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Solution

The fourth proportional to 84,812.20, 127,218.30 and 49,791.40 is: 74,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,812.20 : 127,218.30 = 49,791.40 : x
  2. Step 2: Convert to fraction form
    84,812.20/127,218.30 = 49,791.40/x
  3. Step 3: Cross multiply
    84,812.20x = 127,218.30 × 49,791.40
  4. Step 4: Simplify right side
    84,812.20x = 6,334,377,262.62
  5. Step 5: Solve for x
    x = 6,334,377,262.62/84,812.20
  6. Step 6: Final answer
    x = 74,687.10

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1.5x scale

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.