Home / 82,578.91-123,870.93-39,292.36

Finding the Fourth Proportional to 82,578.91, 123,870.93 and 39,292.36

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Solution

The fourth proportional to 82,578.91, 123,870.93 and 39,292.36 is: 58,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,578.91 : 123,870.93 = 39,292.36 : x
  2. Step 2: Convert to fraction form
    82,578.91/123,870.93 = 39,292.36/x
  3. Step 3: Cross multiply
    82,578.91x = 123,870.93 × 39,292.36
  4. Step 4: Simplify right side
    82,578.91x = 4,867,180,555.74
  5. Step 5: Solve for x
    x = 4,867,180,555.74/82,578.91
  6. Step 6: Final answer
    x = 58,939.75

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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.