Home / 87,275.64-120,433.22-49,033.08

Finding the Fourth Proportional to 87,275.64, 120,433.22 and 49,033.08

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Solution

The fourth proportional to 87,275.64, 120,433.22 and 49,033.08 is: 67,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.64 : 120,433.22 = 49,033.08 : x
  2. Step 2: Convert to fraction form
    87,275.64/120,433.22 = 49,033.08/x
  3. Step 3: Cross multiply
    87,275.64x = 120,433.22 × 49,033.08
  4. Step 4: Simplify right side
    87,275.64x = 5,905,211,710.92
  5. Step 5: Solve for x
    x = 5,905,211,710.92/87,275.64
  6. Step 6: Final answer
    x = 67,661.63

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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.