Home / 75,719.64-113,679.94-64,697.16

Finding the Fourth Proportional to 75,719.64, 113,679.94 and 64,697.16

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Solution

The fourth proportional to 75,719.64, 113,679.94 and 64,697.16 is: 97,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,719.64 : 113,679.94 = 64,697.16 : x
  2. Step 2: Convert to fraction form
    75,719.64/113,679.94 = 64,697.16/x
  3. Step 3: Cross multiply
    75,719.64x = 113,679.94 × 64,697.16
  4. Step 4: Simplify right side
    75,719.64x = 7,354,769,266.97
  5. Step 5: Solve for x
    x = 7,354,769,266.97/75,719.64
  6. Step 6: Final answer
    x = 97,131.59

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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.