Home / 40,523.20-55,171.84-40,398.40

Finding the Fourth Proportional to 40,523.20, 55,171.84 and 40,398.40

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Solution

The fourth proportional to 40,523.20, 55,171.84 and 40,398.40 is: 55,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,523.20 : 55,171.84 = 40,398.40 : x
  2. Step 2: Convert to fraction form
    40,523.20/55,171.84 = 40,398.40/x
  3. Step 3: Cross multiply
    40,523.20x = 55,171.84 × 40,398.40
  4. Step 4: Simplify right side
    40,523.20x = 2,228,854,061.06
  5. Step 5: Solve for x
    x = 2,228,854,061.06/40,523.20
  6. Step 6: Final answer
    x = 55,001.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.