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Finding the Fourth Proportional to 51,960, 71,711.82 and 29,303.64

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Solution

The fourth proportional to 51,960, 71,711.82 and 29,303.64 is: 40,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,960 : 71,711.82 = 29,303.64 : x
  2. Step 2: Convert to fraction form
    51,960/71,711.82 = 29,303.64/x
  3. Step 3: Cross multiply
    51,960x = 71,711.82 × 29,303.64
  4. Step 4: Simplify right side
    51,960x = 2,101,417,357.02
  5. Step 5: Solve for x
    x = 2,101,417,357.02/51,960
  6. Step 6: Final answer
    x = 40,442.98

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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.