Home / 74,279.31-102,512.45-42,442.04

Finding the Fourth Proportional to 74,279.31, 102,512.45 and 42,442.04

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Solution

The fourth proportional to 74,279.31, 102,512.45 and 42,442.04 is: 58,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,279.31 : 102,512.45 = 42,442.04 : x
  2. Step 2: Convert to fraction form
    74,279.31/102,512.45 = 42,442.04/x
  3. Step 3: Cross multiply
    74,279.31x = 102,512.45 × 42,442.04
  4. Step 4: Simplify right side
    74,279.31x = 4,350,837,096.94
  5. Step 5: Solve for x
    x = 4,350,837,096.94/74,279.31
  6. Step 6: Final answer
    x = 58,574.01

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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.