Home / 86,742.29-119,702.80-49,015.73

Finding the Fourth Proportional to 86,742.29, 119,702.80 and 49,015.73

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Solution

The fourth proportional to 86,742.29, 119,702.80 and 49,015.73 is: 67,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,742.29 : 119,702.80 = 49,015.73 : x
  2. Step 2: Convert to fraction form
    86,742.29/119,702.80 = 49,015.73/x
  3. Step 3: Cross multiply
    86,742.29x = 119,702.80 × 49,015.73
  4. Step 4: Simplify right side
    86,742.29x = 5,867,320,125.04
  5. Step 5: Solve for x
    x = 5,867,320,125.04/86,742.29
  6. Step 6: Final answer
    x = 67,640.83

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1.5x scale

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.