Home / 90,357.11-124,696.03-54,540.13

Finding the Fourth Proportional to 90,357.11, 124,696.03 and 54,540.13

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Solution

The fourth proportional to 90,357.11, 124,696.03 and 54,540.13 is: 75,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,357.11 : 124,696.03 = 54,540.13 : x
  2. Step 2: Convert to fraction form
    90,357.11/124,696.03 = 54,540.13/x
  3. Step 3: Cross multiply
    90,357.11x = 124,696.03 × 54,540.13
  4. Step 4: Simplify right side
    90,357.11x = 6,800,937,238.59
  5. Step 5: Solve for x
    x = 6,800,937,238.59/90,357.11
  6. Step 6: Final answer
    x = 75,267.31

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1.5x scale

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.