Home / 60,153.54-90,229.24-20,709.78

Finding the Fourth Proportional to 60,153.54, 90,229.24 and 20,709.78

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Solution

The fourth proportional to 60,153.54, 90,229.24 and 20,709.78 is: 31,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,153.54 : 90,229.24 = 20,709.78 : x
  2. Step 2: Convert to fraction form
    60,153.54/90,229.24 = 20,709.78/x
  3. Step 3: Cross multiply
    60,153.54x = 90,229.24 × 20,709.78
  4. Step 4: Simplify right side
    60,153.54x = 1,868,627,397.49
  5. Step 5: Solve for x
    x = 1,868,627,397.49/60,153.54
  6. Step 6: Final answer
    x = 31,064.30

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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.