Home / 78,428.73-117,647.57-22,264.44

Finding the Fourth Proportional to 78,428.73, 117,647.57 and 22,264.44

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Solution

The fourth proportional to 78,428.73, 117,647.57 and 22,264.44 is: 33,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,428.73 : 117,647.57 = 22,264.44 : x
  2. Step 2: Convert to fraction form
    78,428.73/117,647.57 = 22,264.44/x
  3. Step 3: Cross multiply
    78,428.73x = 117,647.57 × 22,264.44
  4. Step 4: Simplify right side
    78,428.73x = 2,619,357,263.41
  5. Step 5: Solve for x
    x = 2,619,357,263.41/78,428.73
  6. Step 6: Final answer
    x = 33,397.93

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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.