Home / 86,280.27-129,452.40-38,880.96

Finding the Fourth Proportional to 86,280.27, 129,452.40 and 38,880.96

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Solution

The fourth proportional to 86,280.27, 129,452.40 and 38,880.96 is: 58,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,280.27 : 129,452.40 = 38,880.96 : x
  2. Step 2: Convert to fraction form
    86,280.27/129,452.40 = 38,880.96/x
  3. Step 3: Cross multiply
    86,280.27x = 129,452.40 × 38,880.96
  4. Step 4: Simplify right side
    86,280.27x = 5,033,233,586.30
  5. Step 5: Solve for x
    x = 5,033,233,586.30/86,280.27
  6. Step 6: Final answer
    x = 58,335.86

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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.