Home / 66,217.76-91,319.96-49,264.46

Finding the Fourth Proportional to 66,217.76, 91,319.96 and 49,264.46

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Solution

The fourth proportional to 66,217.76, 91,319.96 and 49,264.46 is: 67,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.76 : 91,319.96 = 49,264.46 : x
  2. Step 2: Convert to fraction form
    66,217.76/91,319.96 = 49,264.46/x
  3. Step 3: Cross multiply
    66,217.76x = 91,319.96 × 49,264.46
  4. Step 4: Simplify right side
    66,217.76x = 4,498,828,183.18
  5. Step 5: Solve for x
    x = 4,498,828,183.18/66,217.76
  6. Step 6: Final answer
    x = 67,939.91

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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.