Home / 74,145.20-111,217.80-27,388.40

Finding the Fourth Proportional to 74,145.20, 111,217.80 and 27,388.40

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Solution

The fourth proportional to 74,145.20, 111,217.80 and 27,388.40 is: 41,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.20 : 111,217.80 = 27,388.40 : x
  2. Step 2: Convert to fraction form
    74,145.20/111,217.80 = 27,388.40/x
  3. Step 3: Cross multiply
    74,145.20x = 111,217.80 × 27,388.40
  4. Step 4: Simplify right side
    74,145.20x = 3,046,077,593.52
  5. Step 5: Solve for x
    x = 3,046,077,593.52/74,145.20
  6. Step 6: Final answer
    x = 41,082.60

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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.