Home / 56,889.25-78,506.61-31,395.85

Finding the Fourth Proportional to 56,889.25, 78,506.61 and 31,395.85

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Solution

The fourth proportional to 56,889.25, 78,506.61 and 31,395.85 is: 43,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,889.25 : 78,506.61 = 31,395.85 : x
  2. Step 2: Convert to fraction form
    56,889.25/78,506.61 = 31,395.85/x
  3. Step 3: Cross multiply
    56,889.25x = 78,506.61 × 31,395.85
  4. Step 4: Simplify right side
    56,889.25x = 2,464,781,751.57
  5. Step 5: Solve for x
    x = 2,464,781,751.57/56,889.25
  6. Step 6: Final answer
    x = 43,325.97

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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.