Home / 78,283.36-117,432.73-22,123.90

Finding the Fourth Proportional to 78,283.36, 117,432.73 and 22,123.90

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Solution

The fourth proportional to 78,283.36, 117,432.73 and 22,123.90 is: 33,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,283.36 : 117,432.73 = 22,123.90 : x
  2. Step 2: Convert to fraction form
    78,283.36/117,432.73 = 22,123.90/x
  3. Step 3: Cross multiply
    78,283.36x = 117,432.73 × 22,123.90
  4. Step 4: Simplify right side
    78,283.36x = 2,598,069,975.25
  5. Step 5: Solve for x
    x = 2,598,069,975.25/78,283.36
  6. Step 6: Final answer
    x = 33,188.02

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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.