Home / 78,218.56-117,363.28-33,252.12

Finding the Fourth Proportional to 78,218.56, 117,363.28 and 33,252.12

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Solution

The fourth proportional to 78,218.56, 117,363.28 and 33,252.12 is: 49,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,218.56 : 117,363.28 = 33,252.12 : x
  2. Step 2: Convert to fraction form
    78,218.56/117,363.28 = 33,252.12/x
  3. Step 3: Cross multiply
    78,218.56x = 117,363.28 × 33,252.12
  4. Step 4: Simplify right side
    78,218.56x = 3,902,577,849.37
  5. Step 5: Solve for x
    x = 3,902,577,849.37/78,218.56
  6. Step 6: Final answer
    x = 49,893.25

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1.5x scale

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.