Home / 80,726.40-111,405.60-48,877.28

Finding the Fourth Proportional to 80,726.40, 111,405.60 and 48,877.28

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Solution

The fourth proportional to 80,726.40, 111,405.60 and 48,877.28 is: 67,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,726.40 : 111,405.60 = 48,877.28 : x
  2. Step 2: Convert to fraction form
    80,726.40/111,405.60 = 48,877.28/x
  3. Step 3: Cross multiply
    80,726.40x = 111,405.60 × 48,877.28
  4. Step 4: Simplify right side
    80,726.40x = 5,445,202,704.77
  5. Step 5: Solve for x
    x = 5,445,202,704.77/80,726.40
  6. Step 6: Final answer
    x = 67,452.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.