Home / 75,621.40-113,432.10-31,233.40

Finding the Fourth Proportional to 75,621.40, 113,432.10 and 31,233.40

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Solution

The fourth proportional to 75,621.40, 113,432.10 and 31,233.40 is: 46,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,621.40 : 113,432.10 = 31,233.40 : x
  2. Step 2: Convert to fraction form
    75,621.40/113,432.10 = 31,233.40/x
  3. Step 3: Cross multiply
    75,621.40x = 113,432.10 × 31,233.40
  4. Step 4: Simplify right side
    75,621.40x = 3,542,870,152.14
  5. Step 5: Solve for x
    x = 3,542,870,152.14/75,621.40
  6. Step 6: Final answer
    x = 46,850.10

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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.