Home / 88,000.82-121,440.39-49,767.88

Finding the Fourth Proportional to 88,000.82, 121,440.39 and 49,767.88

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Solution

The fourth proportional to 88,000.82, 121,440.39 and 49,767.88 is: 68,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,000.82 : 121,440.39 = 49,767.88 : x
  2. Step 2: Convert to fraction form
    88,000.82/121,440.39 = 49,767.88/x
  3. Step 3: Cross multiply
    88,000.82x = 121,440.39 × 49,767.88
  4. Step 4: Simplify right side
    88,000.82x = 6,043,829,900.63
  5. Step 5: Solve for x
    x = 6,043,829,900.63/88,000.82
  6. Step 6: Final answer
    x = 68,679.25

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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.