Home / 78,406.12-117,599.99-22,251.16

Finding the Fourth Proportional to 78,406.12, 117,599.99 and 22,251.16

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Solution

The fourth proportional to 78,406.12, 117,599.99 and 22,251.16 is: 33,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,406.12 : 117,599.99 = 22,251.16 : x
  2. Step 2: Convert to fraction form
    78,406.12/117,599.99 = 22,251.16/x
  3. Step 3: Cross multiply
    78,406.12x = 117,599.99 × 22,251.16
  4. Step 4: Simplify right side
    78,406.12x = 2,616,735,661.12
  5. Step 5: Solve for x
    x = 2,616,735,661.12/78,406.12
  6. Step 6: Final answer
    x = 33,374.13

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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.