Home / 74,766.28-103,176.18-40,775.04

Finding the Fourth Proportional to 74,766.28, 103,176.18 and 40,775.04

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Solution

The fourth proportional to 74,766.28, 103,176.18 and 40,775.04 is: 56,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,766.28 : 103,176.18 = 40,775.04 : x
  2. Step 2: Convert to fraction form
    74,766.28/103,176.18 = 40,775.04/x
  3. Step 3: Cross multiply
    74,766.28x = 103,176.18 × 40,775.04
  4. Step 4: Simplify right side
    74,766.28x = 4,207,012,866.55
  5. Step 5: Solve for x
    x = 4,207,012,866.55/74,766.28
  6. Step 6: Final answer
    x = 56,268.85

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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.