Home / 74,034.74-102,168.75-40,043.90

Finding the Fourth Proportional to 74,034.74, 102,168.75 and 40,043.90

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Solution

The fourth proportional to 74,034.74, 102,168.75 and 40,043.90 is: 55,261.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,034.74 : 102,168.75 = 40,043.90 : x
  2. Step 2: Convert to fraction form
    74,034.74/102,168.75 = 40,043.90/x
  3. Step 3: Cross multiply
    74,034.74x = 102,168.75 × 40,043.90
  4. Step 4: Simplify right side
    74,034.74x = 4,091,234,697.28
  5. Step 5: Solve for x
    x = 4,091,234,697.28/74,034.74
  6. Step 6: Final answer
    x = 55,261.02

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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.