Home / 88,719.89-122,477.35-54,747.09

Finding the Fourth Proportional to 88,719.89, 122,477.35 and 54,747.09

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Solution

The fourth proportional to 88,719.89, 122,477.35 and 54,747.09 is: 75,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,719.89 : 122,477.35 = 54,747.09 : x
  2. Step 2: Convert to fraction form
    88,719.89/122,477.35 = 54,747.09/x
  3. Step 3: Cross multiply
    88,719.89x = 122,477.35 × 54,747.09
  4. Step 4: Simplify right side
    88,719.89x = 6,705,277,891.02
  5. Step 5: Solve for x
    x = 6,705,277,891.02/88,719.89
  6. Step 6: Final answer
    x = 75,578.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.