Home / 84,920.24-127,414.92-38,195.12

Finding the Fourth Proportional to 84,920.24, 127,414.92 and 38,195.12

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Solution

The fourth proportional to 84,920.24, 127,414.92 and 38,195.12 is: 57,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,920.24 : 127,414.92 = 38,195.12 : x
  2. Step 2: Convert to fraction form
    84,920.24/127,414.92 = 38,195.12/x
  3. Step 3: Cross multiply
    84,920.24x = 127,414.92 × 38,195.12
  4. Step 4: Simplify right side
    84,920.24x = 4,866,628,159.19
  5. Step 5: Solve for x
    x = 4,866,628,159.19/84,920.24
  6. Step 6: Final answer
    x = 57,308.22

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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.