Home / 90,329.70-124,659.60-54,519.18

Finding the Fourth Proportional to 90,329.70, 124,659.60 and 54,519.18

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Solution

The fourth proportional to 90,329.70, 124,659.60 and 54,519.18 is: 75,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,329.70 : 124,659.60 = 54,519.18 : x
  2. Step 2: Convert to fraction form
    90,329.70/124,659.60 = 54,519.18/x
  3. Step 3: Cross multiply
    90,329.70x = 124,659.60 × 54,519.18
  4. Step 4: Simplify right side
    90,329.70x = 6,796,339,171.13
  5. Step 5: Solve for x
    x = 6,796,339,171.13/90,329.70
  6. Step 6: Final answer
    x = 75,239.25

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Double scale
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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.