Home / 76,990.06-106,244.12-42,997.55

Finding the Fourth Proportional to 76,990.06, 106,244.12 and 42,997.55

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Solution

The fourth proportional to 76,990.06, 106,244.12 and 42,997.55 is: 59,335.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,990.06 : 106,244.12 = 42,997.55 : x
  2. Step 2: Convert to fraction form
    76,990.06/106,244.12 = 42,997.55/x
  3. Step 3: Cross multiply
    76,990.06x = 106,244.12 × 42,997.55
  4. Step 4: Simplify right side
    76,990.06x = 4,568,237,350.61
  5. Step 5: Solve for x
    x = 4,568,237,350.61/76,990.06
  6. Step 6: Final answer
    x = 59,335.41

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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.