Home / 74,298.02-111,446.64-18,138.42

Finding the Fourth Proportional to 74,298.02, 111,446.64 and 18,138.42

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Solution

The fourth proportional to 74,298.02, 111,446.64 and 18,138.42 is: 27,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.02 : 111,446.64 = 18,138.42 : x
  2. Step 2: Convert to fraction form
    74,298.02/111,446.64 = 18,138.42/x
  3. Step 3: Cross multiply
    74,298.02x = 111,446.64 × 18,138.42
  4. Step 4: Simplify right side
    74,298.02x = 2,021,465,963.91
  5. Step 5: Solve for x
    x = 2,021,465,963.91/74,298.02
  6. Step 6: Final answer
    x = 27,207.53

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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.