Home / 83,702.04-115,515.92-47,409.96

Finding the Fourth Proportional to 83,702.04, 115,515.92 and 47,409.96

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Solution

The fourth proportional to 83,702.04, 115,515.92 and 47,409.96 is: 65,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,702.04 : 115,515.92 = 47,409.96 : x
  2. Step 2: Convert to fraction form
    83,702.04/115,515.92 = 47,409.96/x
  3. Step 3: Cross multiply
    83,702.04x = 115,515.92 × 47,409.96
  4. Step 4: Simplify right side
    83,702.04x = 5,476,605,146.56
  5. Step 5: Solve for x
    x = 5,476,605,146.56/83,702.04
  6. Step 6: Final answer
    x = 65,429.77

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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.