Home / 87,806.84-121,192.40-55,520.84

Finding the Fourth Proportional to 87,806.84, 121,192.40 and 55,520.84

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Solution

The fourth proportional to 87,806.84, 121,192.40 and 55,520.84 is: 76,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,806.84 : 121,192.40 = 55,520.84 : x
  2. Step 2: Convert to fraction form
    87,806.84/121,192.40 = 55,520.84/x
  3. Step 3: Cross multiply
    87,806.84x = 121,192.40 × 55,520.84
  4. Step 4: Simplify right side
    87,806.84x = 6,728,704,291.40
  5. Step 5: Solve for x
    x = 6,728,704,291.40/87,806.84
  6. Step 6: Final answer
    x = 76,630.76

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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.