Home / 56,765.91-78,336.98-31,615.41

Finding the Fourth Proportional to 56,765.91, 78,336.98 and 31,615.41

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Solution

The fourth proportional to 56,765.91, 78,336.98 and 31,615.41 is: 43,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.91 : 78,336.98 = 31,615.41 : x
  2. Step 2: Convert to fraction form
    56,765.91/78,336.98 = 31,615.41/x
  3. Step 3: Cross multiply
    56,765.91x = 78,336.98 × 31,615.41
  4. Step 4: Simplify right side
    56,765.91x = 2,476,655,582.78
  5. Step 5: Solve for x
    x = 2,476,655,582.78/56,765.91
  6. Step 6: Final answer
    x = 43,629.28

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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.