Home / 75,463.56-113,199.12-28,720.08

Finding the Fourth Proportional to 75,463.56, 113,199.12 and 28,720.08

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Solution

The fourth proportional to 75,463.56, 113,199.12 and 28,720.08 is: 43,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,463.56 : 113,199.12 = 28,720.08 : x
  2. Step 2: Convert to fraction form
    75,463.56/113,199.12 = 28,720.08/x
  3. Step 3: Cross multiply
    75,463.56x = 113,199.12 × 28,720.08
  4. Step 4: Simplify right side
    75,463.56x = 3,251,087,782.33
  5. Step 5: Solve for x
    x = 3,251,087,782.33/75,463.56
  6. Step 6: Final answer
    x = 43,081.56

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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.