Home / 57,328.45-79,115.54-33,128.62

Finding the Fourth Proportional to 57,328.45, 79,115.54 and 33,128.62

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Solution

The fourth proportional to 57,328.45, 79,115.54 and 33,128.62 is: 45,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,328.45 : 79,115.54 = 33,128.62 : x
  2. Step 2: Convert to fraction form
    57,328.45/79,115.54 = 33,128.62/x
  3. Step 3: Cross multiply
    57,328.45x = 79,115.54 × 33,128.62
  4. Step 4: Simplify right side
    57,328.45x = 2,620,988,660.75
  5. Step 5: Solve for x
    x = 2,620,988,660.75/57,328.45
  6. Step 6: Final answer
    x = 45,718.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.