Home / 74,636.20-111,867.90-30,233.80

Finding the Fourth Proportional to 74,636.20, 111,867.90 and 30,233.80

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Solution

The fourth proportional to 74,636.20, 111,867.90 and 30,233.80 is: 45,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,636.20 : 111,867.90 = 30,233.80 : x
  2. Step 2: Convert to fraction form
    74,636.20/111,867.90 = 30,233.80/x
  3. Step 3: Cross multiply
    74,636.20x = 111,867.90 × 30,233.80
  4. Step 4: Simplify right side
    74,636.20x = 3,382,191,715.02
  5. Step 5: Solve for x
    x = 3,382,191,715.02/74,636.20
  6. Step 6: Final answer
    x = 45,315.70

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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.