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Finding the Fourth Proportional to 88,728.71, 132,880.89 and 51,174.93

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Solution

The fourth proportional to 88,728.71, 132,880.89 and 51,174.93 is: 76,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,728.71 : 132,880.89 = 51,174.93 : x
  2. Step 2: Convert to fraction form
    88,728.71/132,880.89 = 51,174.93/x
  3. Step 3: Cross multiply
    88,728.71x = 132,880.89 × 51,174.93
  4. Step 4: Simplify right side
    88,728.71x = 6,800,170,934.30
  5. Step 5: Solve for x
    x = 6,800,170,934.30/88,728.71
  6. Step 6: Final answer
    x = 76,640.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.