Home / 61,439.21-84,785.90-34,581.70

Finding the Fourth Proportional to 61,439.21, 84,785.90 and 34,581.70

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Solution

The fourth proportional to 61,439.21, 84,785.90 and 34,581.70 is: 47,722.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,439.21 : 84,785.90 = 34,581.70 : x
  2. Step 2: Convert to fraction form
    61,439.21/84,785.90 = 34,581.70/x
  3. Step 3: Cross multiply
    61,439.21x = 84,785.90 × 34,581.70
  4. Step 4: Simplify right side
    61,439.21x = 2,932,040,173.16
  5. Step 5: Solve for x
    x = 2,932,040,173.16/61,439.21
  6. Step 6: Final answer
    x = 47,722.63

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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.