Home / 86,934.57-119,970.92-56,702.53

Finding the Fourth Proportional to 86,934.57, 119,970.92 and 56,702.53

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Solution

The fourth proportional to 86,934.57, 119,970.92 and 56,702.53 is: 78,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934.57 : 119,970.92 = 56,702.53 : x
  2. Step 2: Convert to fraction form
    86,934.57/119,970.92 = 56,702.53/x
  3. Step 3: Cross multiply
    86,934.57x = 119,970.92 × 56,702.53
  4. Step 4: Simplify right side
    86,934.57x = 6,802,654,982.15
  5. Step 5: Solve for x
    x = 6,802,654,982.15/86,934.57
  6. Step 6: Final answer
    x = 78,250.29

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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.