Home / 83,774.34-125,702.51-39,405.56

Finding the Fourth Proportional to 83,774.34, 125,702.51 and 39,405.56

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Solution

The fourth proportional to 83,774.34, 125,702.51 and 39,405.56 is: 59,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,774.34 : 125,702.51 = 39,405.56 : x
  2. Step 2: Convert to fraction form
    83,774.34/125,702.51 = 39,405.56/x
  3. Step 3: Cross multiply
    83,774.34x = 125,702.51 × 39,405.56
  4. Step 4: Simplify right side
    83,774.34x = 4,953,376,974.42
  5. Step 5: Solve for x
    x = 4,953,376,974.42/83,774.34
  6. Step 6: Final answer
    x = 59,127.62

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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.