Home / 60,401.50-90,618.66-20,961.69

Finding the Fourth Proportional to 60,401.50, 90,618.66 and 20,961.69

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Solution

The fourth proportional to 60,401.50, 90,618.66 and 20,961.69 is: 31,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,401.50 : 90,618.66 = 20,961.69 : x
  2. Step 2: Convert to fraction form
    60,401.50/90,618.66 = 20,961.69/x
  3. Step 3: Cross multiply
    60,401.50x = 90,618.66 × 20,961.69
  4. Step 4: Simplify right side
    60,401.50x = 1,899,520,259.14
  5. Step 5: Solve for x
    x = 1,899,520,259.14/60,401.50
  6. Step 6: Final answer
    x = 31,448.23

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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.