Home / 74,225.25-102,431.07-40,233.78

Finding the Fourth Proportional to 74,225.25, 102,431.07 and 40,233.78

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Solution

The fourth proportional to 74,225.25, 102,431.07 and 40,233.78 is: 55,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,225.25 : 102,431.07 = 40,233.78 : x
  2. Step 2: Convert to fraction form
    74,225.25/102,431.07 = 40,233.78/x
  3. Step 3: Cross multiply
    74,225.25x = 102,431.07 × 40,233.78
  4. Step 4: Simplify right side
    74,225.25x = 4,121,189,135.54
  5. Step 5: Solve for x
    x = 4,121,189,135.54/74,225.25
  6. Step 6: Final answer
    x = 55,522.74

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1.5x scale

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.