Home / 90,012.67-124,217.09-49,726.43

Finding the Fourth Proportional to 90,012.67, 124,217.09 and 49,726.43

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Solution

The fourth proportional to 90,012.67, 124,217.09 and 49,726.43 is: 68,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,012.67 : 124,217.09 = 49,726.43 : x
  2. Step 2: Convert to fraction form
    90,012.67/124,217.09 = 49,726.43/x
  3. Step 3: Cross multiply
    90,012.67x = 124,217.09 × 49,726.43
  4. Step 4: Simplify right side
    90,012.67x = 6,176,872,430.69
  5. Step 5: Solve for x
    x = 6,176,872,430.69/90,012.67
  6. Step 6: Final answer
    x = 68,622.26

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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.