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Finding the Fourth Proportional to 77,456.01, 116,182.58 and 21,295.88

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Solution

The fourth proportional to 77,456.01, 116,182.58 and 21,295.88 is: 31,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,456.01 : 116,182.58 = 21,295.88 : x
  2. Step 2: Convert to fraction form
    77,456.01/116,182.58 = 21,295.88/x
  3. Step 3: Cross multiply
    77,456.01x = 116,182.58 × 21,295.88
  4. Step 4: Simplify right side
    77,456.01x = 2,474,209,594.38
  5. Step 5: Solve for x
    x = 2,474,209,594.38/77,456.01
  6. Step 6: Final answer
    x = 31,943.42

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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.