Home / 75,146.16-103,771.95-48,335.21

Finding the Fourth Proportional to 75,146.16, 103,771.95 and 48,335.21

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Solution

The fourth proportional to 75,146.16, 103,771.95 and 48,335.21 is: 66,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,146.16 : 103,771.95 = 48,335.21 : x
  2. Step 2: Convert to fraction form
    75,146.16/103,771.95 = 48,335.21/x
  3. Step 3: Cross multiply
    75,146.16x = 103,771.95 × 48,335.21
  4. Step 4: Simplify right side
    75,146.16x = 5,015,839,539.99
  5. Step 5: Solve for x
    x = 5,015,839,539.99/75,146.16
  6. Step 6: Final answer
    x = 66,747.78

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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.