Home / 55,729.03-76,906.05-31,856.21

Finding the Fourth Proportional to 55,729.03, 76,906.05 and 31,856.21

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Solution

The fourth proportional to 55,729.03, 76,906.05 and 31,856.21 is: 43,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,729.03 : 76,906.05 = 31,856.21 : x
  2. Step 2: Convert to fraction form
    55,729.03/76,906.05 = 31,856.21/x
  3. Step 3: Cross multiply
    55,729.03x = 76,906.05 × 31,856.21
  4. Step 4: Simplify right side
    55,729.03x = 2,449,935,279.07
  5. Step 5: Solve for x
    x = 2,449,935,279.07/55,729.03
  6. Step 6: Final answer
    x = 43,961.56

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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.