Home / 75,325.12-103,937.92-45,103.36

Finding the Fourth Proportional to 75,325.12, 103,937.92 and 45,103.36

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Solution

The fourth proportional to 75,325.12, 103,937.92 and 45,103.36 is: 62,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,325.12 : 103,937.92 = 45,103.36 : x
  2. Step 2: Convert to fraction form
    75,325.12/103,937.92 = 45,103.36/x
  3. Step 3: Cross multiply
    75,325.12x = 103,937.92 × 45,103.36
  4. Step 4: Simplify right side
    75,325.12x = 4,687,949,423.41
  5. Step 5: Solve for x
    x = 4,687,949,423.41/75,325.12
  6. Step 6: Final answer
    x = 62,236.20

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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.