Home / 56,439.68-77,871.24-34,919.09

Finding the Fourth Proportional to 56,439.68, 77,871.24 and 34,919.09

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Solution

The fourth proportional to 56,439.68, 77,871.24 and 34,919.09 is: 48,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,439.68 : 77,871.24 = 34,919.09 : x
  2. Step 2: Convert to fraction form
    56,439.68/77,871.24 = 34,919.09/x
  3. Step 3: Cross multiply
    56,439.68x = 77,871.24 × 34,919.09
  4. Step 4: Simplify right side
    56,439.68x = 2,719,192,448.62
  5. Step 5: Solve for x
    x = 2,719,192,448.62/56,439.68
  6. Step 6: Final answer
    x = 48,178.74

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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.