Home / 74,367.62-111,535.02-21,781.20

Finding the Fourth Proportional to 74,367.62, 111,535.02 and 21,781.20

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Solution

The fourth proportional to 74,367.62, 111,535.02 and 21,781.20 is: 32,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,367.62 : 111,535.02 = 21,781.20 : x
  2. Step 2: Convert to fraction form
    74,367.62/111,535.02 = 21,781.20/x
  3. Step 3: Cross multiply
    74,367.62x = 111,535.02 × 21,781.20
  4. Step 4: Simplify right side
    74,367.62x = 2,429,366,577.62
  5. Step 5: Solve for x
    x = 2,429,366,577.62/74,367.62
  6. Step 6: Final answer
    x = 32,666.99

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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.