Home / 60,661.53-90,930.32-21,186.18

Finding the Fourth Proportional to 60,661.53, 90,930.32 and 21,186.18

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Solution

The fourth proportional to 60,661.53, 90,930.32 and 21,186.18 is: 31,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,661.53 : 90,930.32 = 21,186.18 : x
  2. Step 2: Convert to fraction form
    60,661.53/90,930.32 = 21,186.18/x
  3. Step 3: Cross multiply
    60,661.53x = 90,930.32 × 21,186.18
  4. Step 4: Simplify right side
    60,661.53x = 1,926,466,021.05
  5. Step 5: Solve for x
    x = 1,926,466,021.05/60,661.53
  6. Step 6: Final answer
    x = 31,757.62

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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.