Home / 40,078.36-60,131.34-15,125.56

Finding the Fourth Proportional to 40,078.36, 60,131.34 and 15,125.56

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Solution

The fourth proportional to 40,078.36, 60,131.34 and 15,125.56 is: 22,693.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.36 : 60,131.34 = 15,125.56 : x
  2. Step 2: Convert to fraction form
    40,078.36/60,131.34 = 15,125.56/x
  3. Step 3: Cross multiply
    40,078.36x = 60,131.34 × 15,125.56
  4. Step 4: Simplify right side
    40,078.36x = 909,520,191.05
  5. Step 5: Solve for x
    x = 909,520,191.05/40,078.36
  6. Step 6: Final answer
    x = 22,693.55

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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.