Home / 83,380.25-125,070.11-64,432.40

Finding the Fourth Proportional to 83,380.25, 125,070.11 and 64,432.40

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Solution

The fourth proportional to 83,380.25, 125,070.11 and 64,432.40 is: 96,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,380.25 : 125,070.11 = 64,432.40 : x
  2. Step 2: Convert to fraction form
    83,380.25/125,070.11 = 64,432.40/x
  3. Step 3: Cross multiply
    83,380.25x = 125,070.11 × 64,432.40
  4. Step 4: Simplify right side
    83,380.25x = 8,058,566,649.67
  5. Step 5: Solve for x
    x = 8,058,566,649.67/83,380.25
  6. Step 6: Final answer
    x = 96,648.38

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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.