Home / 90,331.68-124,662.36-54,521.20

Finding the Fourth Proportional to 90,331.68, 124,662.36 and 54,521.20

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Solution

The fourth proportional to 90,331.68, 124,662.36 and 54,521.20 is: 75,242.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,331.68 : 124,662.36 = 54,521.20 : x
  2. Step 2: Convert to fraction form
    90,331.68/124,662.36 = 54,521.20/x
  3. Step 3: Cross multiply
    90,331.68x = 124,662.36 × 54,521.20
  4. Step 4: Simplify right side
    90,331.68x = 6,796,741,462.03
  5. Step 5: Solve for x
    x = 6,796,741,462.03/90,331.68
  6. Step 6: Final answer
    x = 75,242.06

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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.