Home / 74,335.59-102,583.20-40,344.10

Finding the Fourth Proportional to 74,335.59, 102,583.20 and 40,344.10

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Solution

The fourth proportional to 74,335.59, 102,583.20 and 40,344.10 is: 55,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,335.59 : 102,583.20 = 40,344.10 : x
  2. Step 2: Convert to fraction form
    74,335.59/102,583.20 = 40,344.10/x
  3. Step 3: Cross multiply
    74,335.59x = 102,583.20 × 40,344.10
  4. Step 4: Simplify right side
    74,335.59x = 4,138,626,879.12
  5. Step 5: Solve for x
    x = 4,138,626,879.12/74,335.59
  6. Step 6: Final answer
    x = 55,674.90

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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.