Home / 86,890.32-119,921.46-55,062.12

Finding the Fourth Proportional to 86,890.32, 119,921.46 and 55,062.12

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Solution

The fourth proportional to 86,890.32, 119,921.46 and 55,062.12 is: 75,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,890.32 : 119,921.46 = 55,062.12 : x
  2. Step 2: Convert to fraction form
    86,890.32/119,921.46 = 55,062.12/x
  3. Step 3: Cross multiply
    86,890.32x = 119,921.46 × 55,062.12
  4. Step 4: Simplify right side
    86,890.32x = 6,603,129,821.10
  5. Step 5: Solve for x
    x = 6,603,129,821.10/86,890.32
  6. Step 6: Final answer
    x = 75,993.85

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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.