Home / 74,418.10-111,641.55-21,829.30

Finding the Fourth Proportional to 74,418.10, 111,641.55 and 21,829.30

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Solution

The fourth proportional to 74,418.10, 111,641.55 and 21,829.30 is: 32,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418.10 : 111,641.55 = 21,829.30 : x
  2. Step 2: Convert to fraction form
    74,418.10/111,641.55 = 21,829.30/x
  3. Step 3: Cross multiply
    74,418.10x = 111,641.55 × 21,829.30
  4. Step 4: Simplify right side
    74,418.10x = 2,437,056,887.42
  5. Step 5: Solve for x
    x = 2,437,056,887.42/74,418.10
  6. Step 6: Final answer
    x = 32,748.17

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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.