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Finding the Fourth Proportional to 88,470, 132,393.30 and 55,205.70

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Solution

The fourth proportional to 88,470, 132,393.30 and 55,205.70 is: 82,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,470 : 132,393.30 = 55,205.70 : x
  2. Step 2: Convert to fraction form
    88,470/132,393.30 = 55,205.70/x
  3. Step 3: Cross multiply
    88,470x = 132,393.30 × 55,205.70
  4. Step 4: Simplify right side
    88,470x = 7,308,864,801.81
  5. Step 5: Solve for x
    x = 7,308,864,801.81/88,470
  6. Step 6: Final answer
    x = 82,614.05

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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.