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Finding the Fourth Proportional to 96,969, 133,818.84 and 63,435

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Solution

The fourth proportional to 96,969, 133,818.84 and 63,435 is: 87,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,969 : 133,818.84 = 63,435 : x
  2. Step 2: Convert to fraction form
    96,969/133,818.84 = 63,435/x
  3. Step 3: Cross multiply
    96,969x = 133,818.84 × 63,435
  4. Step 4: Simplify right side
    96,969x = 8,488,798,115.40
  5. Step 5: Solve for x
    x = 8,488,798,115.40/96,969
  6. Step 6: Final answer
    x = 87,541.36

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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.