Home / 71,154.72-98,122.32-55,233.36

Finding the Fourth Proportional to 71,154.72, 98,122.32 and 55,233.36

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Solution

The fourth proportional to 71,154.72, 98,122.32 and 55,233.36 is: 76,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,154.72 : 98,122.32 = 55,233.36 : x
  2. Step 2: Convert to fraction form
    71,154.72/98,122.32 = 55,233.36/x
  3. Step 3: Cross multiply
    71,154.72x = 98,122.32 × 55,233.36
  4. Step 4: Simplify right side
    71,154.72x = 5,419,625,424.60
  5. Step 5: Solve for x
    x = 5,419,625,424.60/71,154.72
  6. Step 6: Final answer
    x = 76,166.77

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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.