Home / 75,990.41-113,952.11-40,443.15

Finding the Fourth Proportional to 75,990.41, 113,952.11 and 40,443.15

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Solution

The fourth proportional to 75,990.41, 113,952.11 and 40,443.15 is: 60,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,990.41 : 113,952.11 = 40,443.15 : x
  2. Step 2: Convert to fraction form
    75,990.41/113,952.11 = 40,443.15/x
  3. Step 3: Cross multiply
    75,990.41x = 113,952.11 × 40,443.15
  4. Step 4: Simplify right side
    75,990.41x = 4,608,582,277.55
  5. Step 5: Solve for x
    x = 4,608,582,277.55/75,990.41
  6. Step 6: Final answer
    x = 60,646.90

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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.