Home / 91,947.16-137,921.22-36,543.32

Finding the Fourth Proportional to 91,947.16, 137,921.22 and 36,543.32

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Solution

The fourth proportional to 91,947.16, 137,921.22 and 36,543.32 is: 54,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,947.16 : 137,921.22 = 36,543.32 : x
  2. Step 2: Convert to fraction form
    91,947.16/137,921.22 = 36,543.32/x
  3. Step 3: Cross multiply
    91,947.16x = 137,921.22 × 36,543.32
  4. Step 4: Simplify right side
    91,947.16x = 5,040,099,277.25
  5. Step 5: Solve for x
    x = 5,040,099,277.25/91,947.16
  6. Step 6: Final answer
    x = 54,815.17

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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.