Home / 56,766.29-78,339.90-31,615.79

Finding the Fourth Proportional to 56,766.29, 78,339.90 and 31,615.79

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Solution

The fourth proportional to 56,766.29, 78,339.90 and 31,615.79 is: 43,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,766.29 : 78,339.90 = 31,615.79 : x
  2. Step 2: Convert to fraction form
    56,766.29/78,339.90 = 31,615.79/x
  3. Step 3: Cross multiply
    56,766.29x = 78,339.90 × 31,615.79
  4. Step 4: Simplify right side
    56,766.29x = 2,476,777,435.32
  5. Step 5: Solve for x
    x = 2,476,777,435.32/56,766.29
  6. Step 6: Final answer
    x = 43,631.13

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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.