Home / 78,558.93-117,839.49-22,399.06

Finding the Fourth Proportional to 78,558.93, 117,839.49 and 22,399.06

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Solution

The fourth proportional to 78,558.93, 117,839.49 and 22,399.06 is: 33,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558.93 : 117,839.49 = 22,399.06 : x
  2. Step 2: Convert to fraction form
    78,558.93/117,839.49 = 22,399.06/x
  3. Step 3: Cross multiply
    78,558.93x = 117,839.49 × 22,399.06
  4. Step 4: Simplify right side
    78,558.93x = 2,639,493,808.78
  5. Step 5: Solve for x
    x = 2,639,493,808.78/78,558.93
  6. Step 6: Final answer
    x = 33,598.90

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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.