Home / 84,791.10-127,162.20-34,190.12

Finding the Fourth Proportional to 84,791.10, 127,162.20 and 34,190.12

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Solution

The fourth proportional to 84,791.10, 127,162.20 and 34,190.12 is: 51,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,791.10 : 127,162.20 = 34,190.12 : x
  2. Step 2: Convert to fraction form
    84,791.10/127,162.20 = 34,190.12/x
  3. Step 3: Cross multiply
    84,791.10x = 127,162.20 × 34,190.12
  4. Step 4: Simplify right side
    84,791.10x = 4,347,690,877.46
  5. Step 5: Solve for x
    x = 4,347,690,877.46/84,791.10
  6. Step 6: Final answer
    x = 51,275.32

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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.