Home / 75,135.90-103,692.51-43,306.95

Finding the Fourth Proportional to 75,135.90, 103,692.51 and 43,306.95

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Solution

The fourth proportional to 75,135.90, 103,692.51 and 43,306.95 is: 59,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.90 : 103,692.51 = 43,306.95 : x
  2. Step 2: Convert to fraction form
    75,135.90/103,692.51 = 43,306.95/x
  3. Step 3: Cross multiply
    75,135.90x = 103,692.51 × 43,306.95
  4. Step 4: Simplify right side
    75,135.90x = 4,490,606,345.94
  5. Step 5: Solve for x
    x = 4,490,606,345.94/75,135.90
  6. Step 6: Final answer
    x = 59,766.45

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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.