Home / 74,956.30-112,378.86-45,367.20

Finding the Fourth Proportional to 74,956.30, 112,378.86 and 45,367.20

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Solution

The fourth proportional to 74,956.30, 112,378.86 and 45,367.20 is: 68,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,956.30 : 112,378.86 = 45,367.20 : x
  2. Step 2: Convert to fraction form
    74,956.30/112,378.86 = 45,367.20/x
  3. Step 3: Cross multiply
    74,956.30x = 112,378.86 × 45,367.20
  4. Step 4: Simplify right side
    74,956.30x = 5,098,314,217.39
  5. Step 5: Solve for x
    x = 5,098,314,217.39/74,956.30
  6. Step 6: Final answer
    x = 68,017.16

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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.