Home / 75,719.32-113,579.40-31,322.02

Finding the Fourth Proportional to 75,719.32, 113,579.40 and 31,322.02

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Solution

The fourth proportional to 75,719.32, 113,579.40 and 31,322.02 is: 46,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,719.32 : 113,579.40 = 31,322.02 : x
  2. Step 2: Convert to fraction form
    75,719.32/113,579.40 = 31,322.02/x
  3. Step 3: Cross multiply
    75,719.32x = 113,579.40 × 31,322.02
  4. Step 4: Simplify right side
    75,719.32x = 3,557,536,238.39
  5. Step 5: Solve for x
    x = 3,557,536,238.39/75,719.32
  6. Step 6: Final answer
    x = 46,983.20

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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.