Home / 80,519.67-121,261.75-73,337.13

Finding the Fourth Proportional to 80,519.67, 121,261.75 and 73,337.13

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Solution

The fourth proportional to 80,519.67, 121,261.75 and 73,337.13 is: 110,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,519.67 : 121,261.75 = 73,337.13 : x
  2. Step 2: Convert to fraction form
    80,519.67/121,261.75 = 73,337.13/x
  3. Step 3: Cross multiply
    80,519.67x = 121,261.75 × 73,337.13
  4. Step 4: Simplify right side
    80,519.67x = 8,892,988,540.43
  5. Step 5: Solve for x
    x = 8,892,988,540.43/80,519.67
  6. Step 6: Final answer
    x = 110,444.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.