Home / 74,209.28-111,330.40-21,622.72

Finding the Fourth Proportional to 74,209.28, 111,330.40 and 21,622.72

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Solution

The fourth proportional to 74,209.28, 111,330.40 and 21,622.72 is: 32,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,209.28 : 111,330.40 = 21,622.72 : x
  2. Step 2: Convert to fraction form
    74,209.28/111,330.40 = 21,622.72/x
  3. Step 3: Cross multiply
    74,209.28x = 111,330.40 × 21,622.72
  4. Step 4: Simplify right side
    74,209.28x = 2,407,266,066.69
  5. Step 5: Solve for x
    x = 2,407,266,066.69/74,209.28
  6. Step 6: Final answer
    x = 32,438.88

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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.