Home / 74,084.04-102,235.19-40,091.78

Finding the Fourth Proportional to 74,084.04, 102,235.19 and 40,091.78

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Solution

The fourth proportional to 74,084.04, 102,235.19 and 40,091.78 is: 55,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,084.04 : 102,235.19 = 40,091.78 : x
  2. Step 2: Convert to fraction form
    74,084.04/102,235.19 = 40,091.78/x
  3. Step 3: Cross multiply
    74,084.04x = 102,235.19 × 40,091.78
  4. Step 4: Simplify right side
    74,084.04x = 4,098,790,800.87
  5. Step 5: Solve for x
    x = 4,098,790,800.87/74,084.04
  6. Step 6: Final answer
    x = 55,326.23

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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.