Home / 78,243.42-117,363.08-22,087.41

Finding the Fourth Proportional to 78,243.42, 117,363.08 and 22,087.41

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Solution

The fourth proportional to 78,243.42, 117,363.08 and 22,087.41 is: 33,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,243.42 : 117,363.08 = 22,087.41 : x
  2. Step 2: Convert to fraction form
    78,243.42/117,363.08 = 22,087.41/x
  3. Step 3: Cross multiply
    78,243.42x = 117,363.08 × 22,087.41
  4. Step 4: Simplify right side
    78,243.42x = 2,592,246,287.77
  5. Step 5: Solve for x
    x = 2,592,246,287.77/78,243.42
  6. Step 6: Final answer
    x = 33,130.53

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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.