Home / 75,221.28-103,803.60-41,686.56

Finding the Fourth Proportional to 75,221.28, 103,803.60 and 41,686.56

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Solution

The fourth proportional to 75,221.28, 103,803.60 and 41,686.56 is: 57,526.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,221.28 : 103,803.60 = 41,686.56 : x
  2. Step 2: Convert to fraction form
    75,221.28/103,803.60 = 41,686.56/x
  3. Step 3: Cross multiply
    75,221.28x = 103,803.60 × 41,686.56
  4. Step 4: Simplify right side
    75,221.28x = 4,327,214,999.62
  5. Step 5: Solve for x
    x = 4,327,214,999.62/75,221.28
  6. Step 6: Final answer
    x = 57,526.47

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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.