Home / 75,260.15-103,862.30-45,039.73

Finding the Fourth Proportional to 75,260.15, 103,862.30 and 45,039.73

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Solution

The fourth proportional to 75,260.15, 103,862.30 and 45,039.73 is: 62,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,260.15 : 103,862.30 = 45,039.73 : x
  2. Step 2: Convert to fraction form
    75,260.15/103,862.30 = 45,039.73/x
  3. Step 3: Cross multiply
    75,260.15x = 103,862.30 × 45,039.73
  4. Step 4: Simplify right side
    75,260.15x = 4,677,929,464.32
  5. Step 5: Solve for x
    x = 4,677,929,464.32/75,260.15
  6. Step 6: Final answer
    x = 62,156.79

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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.