Home / 74,815.48-103,382.22-71,170.84

Finding the Fourth Proportional to 74,815.48, 103,382.22 and 71,170.84

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Solution

The fourth proportional to 74,815.48, 103,382.22 and 71,170.84 is: 98,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,815.48 : 103,382.22 = 71,170.84 : x
  2. Step 2: Convert to fraction form
    74,815.48/103,382.22 = 71,170.84/x
  3. Step 3: Cross multiply
    74,815.48x = 103,382.22 × 71,170.84
  4. Step 4: Simplify right side
    74,815.48x = 7,357,799,438.46
  5. Step 5: Solve for x
    x = 7,357,799,438.46/74,815.48
  6. Step 6: Final answer
    x = 98,345.95

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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.