Home / 74,759.10-103,166.31-40,767.66

Finding the Fourth Proportional to 74,759.10, 103,166.31 and 40,767.66

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Solution

The fourth proportional to 74,759.10, 103,166.31 and 40,767.66 is: 56,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,759.10 : 103,166.31 = 40,767.66 : x
  2. Step 2: Convert to fraction form
    74,759.10/103,166.31 = 40,767.66/x
  3. Step 3: Cross multiply
    74,759.10x = 103,166.31 × 40,767.66
  4. Step 4: Simplify right side
    74,759.10x = 4,205,849,049.53
  5. Step 5: Solve for x
    x = 4,205,849,049.53/74,759.10
  6. Step 6: Final answer
    x = 56,258.69

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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.