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Finding the Fourth Proportional to 127,787.68, 191,710.68 and 39,053.80

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Solution

The fourth proportional to 127,787.68, 191,710.68 and 39,053.80 is: 58,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,787.68 : 191,710.68 = 39,053.80 : x
  2. Step 2: Convert to fraction form
    127,787.68/191,710.68 = 39,053.80/x
  3. Step 3: Cross multiply
    127,787.68x = 191,710.68 × 39,053.80
  4. Step 4: Simplify right side
    127,787.68x = 7,487,030,554.58
  5. Step 5: Solve for x
    x = 7,487,030,554.58/127,787.68
  6. Step 6: Final answer
    x = 58,589.61

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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.