Home / 60,159.54-90,238.23-20,715.78

Finding the Fourth Proportional to 60,159.54, 90,238.23 and 20,715.78

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Solution

The fourth proportional to 60,159.54, 90,238.23 and 20,715.78 is: 31,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,159.54 : 90,238.23 = 20,715.78 : x
  2. Step 2: Convert to fraction form
    60,159.54/90,238.23 = 20,715.78/x
  3. Step 3: Cross multiply
    60,159.54x = 90,238.23 × 20,715.78
  4. Step 4: Simplify right side
    60,159.54x = 1,869,355,320.27
  5. Step 5: Solve for x
    x = 1,869,355,320.27/60,159.54
  6. Step 6: Final answer
    x = 31,073.30

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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.