Home / 58,121.40-87,182.10-38,422.20

Finding the Fourth Proportional to 58,121.40, 87,182.10 and 38,422.20

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Solution

The fourth proportional to 58,121.40, 87,182.10 and 38,422.20 is: 57,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,121.40 : 87,182.10 = 38,422.20 : x
  2. Step 2: Convert to fraction form
    58,121.40/87,182.10 = 38,422.20/x
  3. Step 3: Cross multiply
    58,121.40x = 87,182.10 × 38,422.20
  4. Step 4: Simplify right side
    58,121.40x = 3,349,728,082.62
  5. Step 5: Solve for x
    x = 3,349,728,082.62/58,121.40
  6. Step 6: Final answer
    x = 57,633.30

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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.