Home / 55,739.04-76,921.20-31,867.95

Finding the Fourth Proportional to 55,739.04, 76,921.20 and 31,867.95

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Solution

The fourth proportional to 55,739.04, 76,921.20 and 31,867.95 is: 43,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.04 : 76,921.20 = 31,867.95 : x
  2. Step 2: Convert to fraction form
    55,739.04/76,921.20 = 31,867.95/x
  3. Step 3: Cross multiply
    55,739.04x = 76,921.20 × 31,867.95
  4. Step 4: Simplify right side
    55,739.04x = 2,451,320,955.54
  5. Step 5: Solve for x
    x = 2,451,320,955.54/55,739.04
  6. Step 6: Final answer
    x = 43,978.53

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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.