Home / 90,308.12-124,626.10-54,491.22

Finding the Fourth Proportional to 90,308.12, 124,626.10 and 54,491.22

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Solution

The fourth proportional to 90,308.12, 124,626.10 and 54,491.22 is: 75,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,308.12 : 124,626.10 = 54,491.22 : x
  2. Step 2: Convert to fraction form
    90,308.12/124,626.10 = 54,491.22/x
  3. Step 3: Cross multiply
    90,308.12x = 124,626.10 × 54,491.22
  4. Step 4: Simplify right side
    90,308.12x = 6,791,028,232.84
  5. Step 5: Solve for x
    x = 6,791,028,232.84/90,308.12
  6. Step 6: Final answer
    x = 75,198.42

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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.