Home / 87,927.21-121,323.57-49,165.73

Finding the Fourth Proportional to 87,927.21, 121,323.57 and 49,165.73

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Solution

The fourth proportional to 87,927.21, 121,323.57 and 49,165.73 is: 67,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,927.21 : 121,323.57 = 49,165.73 : x
  2. Step 2: Convert to fraction form
    87,927.21/121,323.57 = 49,165.73/x
  3. Step 3: Cross multiply
    87,927.21x = 121,323.57 × 49,165.73
  4. Step 4: Simplify right side
    87,927.21x = 5,964,961,032.81
  5. Step 5: Solve for x
    x = 5,964,961,032.81/87,927.21
  6. Step 6: Final answer
    x = 67,839.77

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1.5x scale

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.