Home / 75,180.60-103,760.28-43,343.28

Finding the Fourth Proportional to 75,180.60, 103,760.28 and 43,343.28

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Solution

The fourth proportional to 75,180.60, 103,760.28 and 43,343.28 is: 59,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,180.60 : 103,760.28 = 43,343.28 : x
  2. Step 2: Convert to fraction form
    75,180.60/103,760.28 = 43,343.28/x
  3. Step 3: Cross multiply
    75,180.60x = 103,760.28 × 43,343.28
  4. Step 4: Simplify right side
    75,180.60x = 4,497,310,868.92
  5. Step 5: Solve for x
    x = 4,497,310,868.92/75,180.60
  6. Step 6: Final answer
    x = 59,820.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.