Home / 80,219.36-110,635.80-60,124.16

Finding the Fourth Proportional to 80,219.36, 110,635.80 and 60,124.16

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Solution

The fourth proportional to 80,219.36, 110,635.80 and 60,124.16 is: 82,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,219.36 : 110,635.80 = 60,124.16 : x
  2. Step 2: Convert to fraction form
    80,219.36/110,635.80 = 60,124.16/x
  3. Step 3: Cross multiply
    80,219.36x = 110,635.80 × 60,124.16
  4. Step 4: Simplify right side
    80,219.36x = 6,651,884,540.93
  5. Step 5: Solve for x
    x = 6,651,884,540.93/80,219.36
  6. Step 6: Final answer
    x = 82,921.19

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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.