Home / 74,199.68-111,279.36-21,595.52

Finding the Fourth Proportional to 74,199.68, 111,279.36 and 21,595.52

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Solution

The fourth proportional to 74,199.68, 111,279.36 and 21,595.52 is: 32,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,199.68 : 111,279.36 = 21,595.52 : x
  2. Step 2: Convert to fraction form
    74,199.68/111,279.36 = 21,595.52/x
  3. Step 3: Cross multiply
    74,199.68x = 111,279.36 × 21,595.52
  4. Step 4: Simplify right side
    74,199.68x = 2,403,135,644.47
  5. Step 5: Solve for x
    x = 2,403,135,644.47/74,199.68
  6. Step 6: Final answer
    x = 32,387.41

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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.