Home / 74,456.32-102,754.56-42,629.44

Finding the Fourth Proportional to 74,456.32, 102,754.56 and 42,629.44

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Solution

The fourth proportional to 74,456.32, 102,754.56 and 42,629.44 is: 58,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,456.32 : 102,754.56 = 42,629.44 : x
  2. Step 2: Convert to fraction form
    74,456.32/102,754.56 = 42,629.44/x
  3. Step 3: Cross multiply
    74,456.32x = 102,754.56 × 42,629.44
  4. Step 4: Simplify right side
    74,456.32x = 4,380,369,350.25
  5. Step 5: Solve for x
    x = 4,380,369,350.25/74,456.32
  6. Step 6: Final answer
    x = 58,831.40

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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.