Home / 75,139.08-103,693.21-41,147.03

Finding the Fourth Proportional to 75,139.08, 103,693.21 and 41,147.03

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Solution

The fourth proportional to 75,139.08, 103,693.21 and 41,147.03 is: 56,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.08 : 103,693.21 = 41,147.03 : x
  2. Step 2: Convert to fraction form
    75,139.08/103,693.21 = 41,147.03/x
  3. Step 3: Cross multiply
    75,139.08x = 103,693.21 × 41,147.03
  4. Step 4: Simplify right side
    75,139.08x = 4,266,667,622.67
  5. Step 5: Solve for x
    x = 4,266,667,622.67/75,139.08
  6. Step 6: Final answer
    x = 56,783.60

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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.