Home / 61,921.92-92,870.46-30,318.36

Finding the Fourth Proportional to 61,921.92, 92,870.46 and 30,318.36

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Solution

The fourth proportional to 61,921.92, 92,870.46 and 30,318.36 is: 45,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.92 : 92,870.46 = 30,318.36 : x
  2. Step 2: Convert to fraction form
    61,921.92/92,870.46 = 30,318.36/x
  3. Step 3: Cross multiply
    61,921.92x = 92,870.46 × 30,318.36
  4. Step 4: Simplify right side
    61,921.92x = 2,815,680,039.65
  5. Step 5: Solve for x
    x = 2,815,680,039.65/61,921.92
  6. Step 6: Final answer
    x = 45,471.46

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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.