Home / 40,109.28-60,163.76-10,123.60

Finding the Fourth Proportional to 40,109.28, 60,163.76 and 10,123.60

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Solution

The fourth proportional to 40,109.28, 60,163.76 and 10,123.60 is: 15,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,109.28 : 60,163.76 = 10,123.60 : x
  2. Step 2: Convert to fraction form
    40,109.28/60,163.76 = 10,123.60/x
  3. Step 3: Cross multiply
    40,109.28x = 60,163.76 × 10,123.60
  4. Step 4: Simplify right side
    40,109.28x = 609,073,840.74
  5. Step 5: Solve for x
    x = 609,073,840.74/40,109.28
  6. Step 6: Final answer
    x = 15,185.36

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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.