Home / 74,775.28-112,184.10-30,433.85

Finding the Fourth Proportional to 74,775.28, 112,184.10 and 30,433.85

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Solution

The fourth proportional to 74,775.28, 112,184.10 and 30,433.85 is: 45,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,775.28 : 112,184.10 = 30,433.85 : x
  2. Step 2: Convert to fraction form
    74,775.28/112,184.10 = 30,433.85/x
  3. Step 3: Cross multiply
    74,775.28x = 112,184.10 × 30,433.85
  4. Step 4: Simplify right side
    74,775.28x = 3,414,194,352.25
  5. Step 5: Solve for x
    x = 3,414,194,352.25/74,775.28
  6. Step 6: Final answer
    x = 45,659.40

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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.