Home / 55,132.20-82,449.06-42,480.40

Finding the Fourth Proportional to 55,132.20, 82,449.06 and 42,480.40

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Solution

The fourth proportional to 55,132.20, 82,449.06 and 42,480.40 is: 63,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.20 : 82,449.06 = 42,480.40 : x
  2. Step 2: Convert to fraction form
    55,132.20/82,449.06 = 42,480.40/x
  3. Step 3: Cross multiply
    55,132.20x = 82,449.06 × 42,480.40
  4. Step 4: Simplify right side
    55,132.20x = 3,502,469,048.42
  5. Step 5: Solve for x
    x = 3,502,469,048.42/55,132.20
  6. Step 6: Final answer
    x = 63,528.56

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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.