Home / 72,766.22-100,380.63-42,531.79

Finding the Fourth Proportional to 72,766.22, 100,380.63 and 42,531.79

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Solution

The fourth proportional to 72,766.22, 100,380.63 and 42,531.79 is: 58,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,766.22 : 100,380.63 = 42,531.79 : x
  2. Step 2: Convert to fraction form
    72,766.22/100,380.63 = 42,531.79/x
  3. Step 3: Cross multiply
    72,766.22x = 100,380.63 × 42,531.79
  4. Step 4: Simplify right side
    72,766.22x = 4,269,367,373.32
  5. Step 5: Solve for x
    x = 4,269,367,373.32/72,766.22
  6. Step 6: Final answer
    x = 58,672.38

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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.