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Finding the Fourth Proportional to 88,195.80, 121,707.40 and 49,958.88

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Solution

The fourth proportional to 88,195.80, 121,707.40 and 49,958.88 is: 68,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,195.80 : 121,707.40 = 49,958.88 : x
  2. Step 2: Convert to fraction form
    88,195.80/121,707.40 = 49,958.88/x
  3. Step 3: Cross multiply
    88,195.80x = 121,707.40 × 49,958.88
  4. Step 4: Simplify right side
    88,195.80x = 6,080,365,391.71
  5. Step 5: Solve for x
    x = 6,080,365,391.71/88,195.80
  6. Step 6: Final answer
    x = 68,941.67

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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.