Home / 88,015.50-121,503.24-55,766.16

Finding the Fourth Proportional to 88,015.50, 121,503.24 and 55,766.16

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Solution

The fourth proportional to 88,015.50, 121,503.24 and 55,766.16 is: 76,983.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,015.50 : 121,503.24 = 55,766.16 : x
  2. Step 2: Convert to fraction form
    88,015.50/121,503.24 = 55,766.16/x
  3. Step 3: Cross multiply
    88,015.50x = 121,503.24 × 55,766.16
  4. Step 4: Simplify right side
    88,015.50x = 6,775,769,122.36
  5. Step 5: Solve for x
    x = 6,775,769,122.36/88,015.50
  6. Step 6: Final answer
    x = 76,983.82

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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.