Home / 71,864.07-107,787.84-19,269.42

Finding the Fourth Proportional to 71,864.07, 107,787.84 and 19,269.42

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Solution

The fourth proportional to 71,864.07, 107,787.84 and 19,269.42 is: 28,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864.07 : 107,787.84 = 19,269.42 : x
  2. Step 2: Convert to fraction form
    71,864.07/107,787.84 = 19,269.42/x
  3. Step 3: Cross multiply
    71,864.07x = 107,787.84 × 19,269.42
  4. Step 4: Simplify right side
    71,864.07x = 2,077,009,159.85
  5. Step 5: Solve for x
    x = 2,077,009,159.85/71,864.07
  6. Step 6: Final answer
    x = 28,901.91

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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.