Home / 80,495.89-111,217.19-60,419.23

Finding the Fourth Proportional to 80,495.89, 111,217.19 and 60,419.23

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Solution

The fourth proportional to 80,495.89, 111,217.19 and 60,419.23 is: 83,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,495.89 : 111,217.19 = 60,419.23 : x
  2. Step 2: Convert to fraction form
    80,495.89/111,217.19 = 60,419.23/x
  3. Step 3: Cross multiply
    80,495.89x = 111,217.19 × 60,419.23
  4. Step 4: Simplify right side
    80,495.89x = 6,719,656,402.42
  5. Step 5: Solve for x
    x = 6,719,656,402.42/80,495.89
  6. Step 6: Final answer
    x = 83,478.26

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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.