Home / 80,331.32-120,521.28-27,746.12

Finding the Fourth Proportional to 80,331.32, 120,521.28 and 27,746.12

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Solution

The fourth proportional to 80,331.32, 120,521.28 and 27,746.12 is: 41,627.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,331.32 : 120,521.28 = 27,746.12 : x
  2. Step 2: Convert to fraction form
    80,331.32/120,521.28 = 27,746.12/x
  3. Step 3: Cross multiply
    80,331.32x = 120,521.28 × 27,746.12
  4. Step 4: Simplify right side
    80,331.32x = 3,343,997,897.43
  5. Step 5: Solve for x
    x = 3,343,997,897.43/80,331.32
  6. Step 6: Final answer
    x = 41,627.57

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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.