Home / 40,765.90-56,180.76-31,799.20

Finding the Fourth Proportional to 40,765.90, 56,180.76 and 31,799.20

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Solution

The fourth proportional to 40,765.90, 56,180.76 and 31,799.20 is: 43,823.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,765.90 : 56,180.76 = 31,799.20 : x
  2. Step 2: Convert to fraction form
    40,765.90/56,180.76 = 31,799.20/x
  3. Step 3: Cross multiply
    40,765.90x = 56,180.76 × 31,799.20
  4. Step 4: Simplify right side
    40,765.90x = 1,786,503,223.39
  5. Step 5: Solve for x
    x = 1,786,503,223.39/40,765.90
  6. Step 6: Final answer
    x = 43,823.47

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1.5x scale

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.