Home / 80,760.84-121,132.74-21,602.48

Finding the Fourth Proportional to 80,760.84, 121,132.74 and 21,602.48

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Solution

The fourth proportional to 80,760.84, 121,132.74 and 21,602.48 is: 32,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,760.84 : 121,132.74 = 21,602.48 : x
  2. Step 2: Convert to fraction form
    80,760.84/121,132.74 = 21,602.48/x
  3. Step 3: Cross multiply
    80,760.84x = 121,132.74 × 21,602.48
  4. Step 4: Simplify right side
    80,760.84x = 2,616,767,593.20
  5. Step 5: Solve for x
    x = 2,616,767,593.20/80,760.84
  6. Step 6: Final answer
    x = 32,401.44

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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.