Home / 57,209.76-78,902.84-40,270.23

Finding the Fourth Proportional to 57,209.76, 78,902.84 and 40,270.23

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Solution

The fourth proportional to 57,209.76, 78,902.84 and 40,270.23 is: 55,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.76 : 78,902.84 = 40,270.23 : x
  2. Step 2: Convert to fraction form
    57,209.76/78,902.84 = 40,270.23/x
  3. Step 3: Cross multiply
    57,209.76x = 78,902.84 × 40,270.23
  4. Step 4: Simplify right side
    57,209.76x = 3,177,435,615.13
  5. Step 5: Solve for x
    x = 3,177,435,615.13/57,209.76
  6. Step 6: Final answer
    x = 55,540.10

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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.