Home / 74,759.82-103,171.03-40,770.16

Finding the Fourth Proportional to 74,759.82, 103,171.03 and 40,770.16

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Solution

The fourth proportional to 74,759.82, 103,171.03 and 40,770.16 is: 56,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,759.82 : 103,171.03 = 40,770.16 : x
  2. Step 2: Convert to fraction form
    74,759.82/103,171.03 = 40,770.16/x
  3. Step 3: Cross multiply
    74,759.82x = 103,171.03 × 40,770.16
  4. Step 4: Simplify right side
    74,759.82x = 4,206,299,040.61
  5. Step 5: Solve for x
    x = 4,206,299,040.61/74,759.82
  6. Step 6: Final answer
    x = 56,264.17

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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.