Home / 75,576.20-113,364.30-74,280.20

Finding the Fourth Proportional to 75,576.20, 113,364.30 and 74,280.20

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Solution

The fourth proportional to 75,576.20, 113,364.30 and 74,280.20 is: 111,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,576.20 : 113,364.30 = 74,280.20 : x
  2. Step 2: Convert to fraction form
    75,576.20/113,364.30 = 74,280.20/x
  3. Step 3: Cross multiply
    75,576.20x = 113,364.30 × 74,280.20
  4. Step 4: Simplify right side
    75,576.20x = 8,420,722,876.86
  5. Step 5: Solve for x
    x = 8,420,722,876.86/75,576.20
  6. Step 6: Final answer
    x = 111,420.30

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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.