Home / 74,780.20-112,167.87-30,395.04

Finding the Fourth Proportional to 74,780.20, 112,167.87 and 30,395.04

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Solution

The fourth proportional to 74,780.20, 112,167.87 and 30,395.04 is: 45,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,780.20 : 112,167.87 = 30,395.04 : x
  2. Step 2: Convert to fraction form
    74,780.20/112,167.87 = 30,395.04/x
  3. Step 3: Cross multiply
    74,780.20x = 112,167.87 × 30,395.04
  4. Step 4: Simplify right side
    74,780.20x = 3,409,346,895.36
  5. Step 5: Solve for x
    x = 3,409,346,895.36/74,780.20
  6. Step 6: Final answer
    x = 45,591.57

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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.