Home / 88,168.28-121,685.96-49,929.80

Finding the Fourth Proportional to 88,168.28, 121,685.96 and 49,929.80

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Solution

The fourth proportional to 88,168.28, 121,685.96 and 49,929.80 is: 68,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,168.28 : 121,685.96 = 49,929.80 : x
  2. Step 2: Convert to fraction form
    88,168.28/121,685.96 = 49,929.80/x
  3. Step 3: Cross multiply
    88,168.28x = 121,685.96 × 49,929.80
  4. Step 4: Simplify right side
    88,168.28x = 6,075,755,162.00
  5. Step 5: Solve for x
    x = 6,075,755,162.00/88,168.28
  6. Step 6: Final answer
    x = 68,910.90

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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.