Home / 83,495.20-115,280.40-58,352.80

Finding the Fourth Proportional to 83,495.20, 115,280.40 and 58,352.80

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Solution

The fourth proportional to 83,495.20, 115,280.40 and 58,352.80 is: 80,566.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,495.20 : 115,280.40 = 58,352.80 : x
  2. Step 2: Convert to fraction form
    83,495.20/115,280.40 = 58,352.80/x
  3. Step 3: Cross multiply
    83,495.20x = 115,280.40 × 58,352.80
  4. Step 4: Simplify right side
    83,495.20x = 6,726,934,125.12
  5. Step 5: Solve for x
    x = 6,726,934,125.12/83,495.20
  6. Step 6: Final answer
    x = 80,566.72

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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.