Home / 65,645.20-90,621.12-44,458.72

Finding the Fourth Proportional to 65,645.20, 90,621.12 and 44,458.72

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Solution

The fourth proportional to 65,645.20, 90,621.12 and 44,458.72 is: 61,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.20 : 90,621.12 = 44,458.72 : x
  2. Step 2: Convert to fraction form
    65,645.20/90,621.12 = 44,458.72/x
  3. Step 3: Cross multiply
    65,645.20x = 90,621.12 × 44,458.72
  4. Step 4: Simplify right side
    65,645.20x = 4,028,899,000.17
  5. Step 5: Solve for x
    x = 4,028,899,000.17/65,645.20
  6. Step 6: Final answer
    x = 61,373.86

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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.