Home / 75,231.38-103,820.47-45,017.98

Finding the Fourth Proportional to 75,231.38, 103,820.47 and 45,017.98

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Solution

The fourth proportional to 75,231.38, 103,820.47 and 45,017.98 is: 62,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,231.38 : 103,820.47 = 45,017.98 : x
  2. Step 2: Convert to fraction form
    75,231.38/103,820.47 = 45,017.98/x
  3. Step 3: Cross multiply
    75,231.38x = 103,820.47 × 45,017.98
  4. Step 4: Simplify right side
    75,231.38x = 4,673,787,469.95
  5. Step 5: Solve for x
    x = 4,673,787,469.95/75,231.38
  6. Step 6: Final answer
    x = 62,125.50

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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.