Home / 78,641.01-117,962.28-22,480.73

Finding the Fourth Proportional to 78,641.01, 117,962.28 and 22,480.73

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Solution

The fourth proportional to 78,641.01, 117,962.28 and 22,480.73 is: 33,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,641.01 : 117,962.28 = 22,480.73 : x
  2. Step 2: Convert to fraction form
    78,641.01/117,962.28 = 22,480.73/x
  3. Step 3: Cross multiply
    78,641.01x = 117,962.28 × 22,480.73
  4. Step 4: Simplify right side
    78,641.01x = 2,651,878,019.41
  5. Step 5: Solve for x
    x = 2,651,878,019.41/78,641.01
  6. Step 6: Final answer
    x = 33,721.31

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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.