Home / 74,748.60-112,067.10-45,160.20

Finding the Fourth Proportional to 74,748.60, 112,067.10 and 45,160.20

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Solution

The fourth proportional to 74,748.60, 112,067.10 and 45,160.20 is: 67,706.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,748.60 : 112,067.10 = 45,160.20 : x
  2. Step 2: Convert to fraction form
    74,748.60/112,067.10 = 45,160.20/x
  3. Step 3: Cross multiply
    74,748.60x = 112,067.10 × 45,160.20
  4. Step 4: Simplify right side
    74,748.60x = 5,060,972,649.42
  5. Step 5: Solve for x
    x = 5,060,972,649.42/74,748.60
  6. Step 6: Final answer
    x = 67,706.59

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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.