Home / 89,509.74-134,264.60-42,620.46

Finding the Fourth Proportional to 89,509.74, 134,264.60 and 42,620.46

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Solution

The fourth proportional to 89,509.74, 134,264.60 and 42,620.46 is: 63,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,509.74 : 134,264.60 = 42,620.46 : x
  2. Step 2: Convert to fraction form
    89,509.74/134,264.60 = 42,620.46/x
  3. Step 3: Cross multiply
    89,509.74x = 134,264.60 × 42,620.46
  4. Step 4: Simplify right side
    89,509.74x = 5,722,419,120.27
  5. Step 5: Solve for x
    x = 5,722,419,120.27/89,509.74
  6. Step 6: Final answer
    x = 63,930.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.