Home / 74,073.55-111,121.27-21,476.20

Finding the Fourth Proportional to 74,073.55, 111,121.27 and 21,476.20

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Solution

The fourth proportional to 74,073.55, 111,121.27 and 21,476.20 is: 32,217.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,073.55 : 111,121.27 = 21,476.20 : x
  2. Step 2: Convert to fraction form
    74,073.55/111,121.27 = 21,476.20/x
  3. Step 3: Cross multiply
    74,073.55x = 111,121.27 × 21,476.20
  4. Step 4: Simplify right side
    74,073.55x = 2,386,462,618.77
  5. Step 5: Solve for x
    x = 2,386,462,618.77/74,073.55
  6. Step 6: Final answer
    x = 32,217.47

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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.