Home / 75,139.41-103,685.20-44,918.73

Finding the Fourth Proportional to 75,139.41, 103,685.20 and 44,918.73

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Solution

The fourth proportional to 75,139.41, 103,685.20 and 44,918.73 is: 61,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.41 : 103,685.20 = 44,918.73 : x
  2. Step 2: Convert to fraction form
    75,139.41/103,685.20 = 44,918.73/x
  3. Step 3: Cross multiply
    75,139.41x = 103,685.20 × 44,918.73
  4. Step 4: Simplify right side
    75,139.41x = 4,657,407,503.80
  5. Step 5: Solve for x
    x = 4,657,407,503.80/75,139.41
  6. Step 6: Final answer
    x = 61,983.55

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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.