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Finding the Fourth Proportional to 75,170.80, 112,756.20 and 25,234.30

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Solution

The fourth proportional to 75,170.80, 112,756.20 and 25,234.30 is: 37,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,170.80 : 112,756.20 = 25,234.30 : x
  2. Step 2: Convert to fraction form
    75,170.80/112,756.20 = 25,234.30/x
  3. Step 3: Cross multiply
    75,170.80x = 112,756.20 × 25,234.30
  4. Step 4: Simplify right side
    75,170.80x = 2,845,323,777.66
  5. Step 5: Solve for x
    x = 2,845,323,777.66/75,170.80
  6. Step 6: Final answer
    x = 37,851.45

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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.