Home / 78,726.57-118,078.81-22,571.47

Finding the Fourth Proportional to 78,726.57, 118,078.81 and 22,571.47

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Solution

The fourth proportional to 78,726.57, 118,078.81 and 22,571.47 is: 33,854.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,726.57 : 118,078.81 = 22,571.47 : x
  2. Step 2: Convert to fraction form
    78,726.57/118,078.81 = 22,571.47/x
  3. Step 3: Cross multiply
    78,726.57x = 118,078.81 × 22,571.47
  4. Step 4: Simplify right side
    78,726.57x = 2,665,212,317.55
  5. Step 5: Solve for x
    x = 2,665,212,317.55/78,726.57
  6. Step 6: Final answer
    x = 33,854.04

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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.