Home / 55,287.60-76,297.02-31,422.20

Finding the Fourth Proportional to 55,287.60, 76,297.02 and 31,422.20

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Solution

The fourth proportional to 55,287.60, 76,297.02 and 31,422.20 is: 43,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,287.60 : 76,297.02 = 31,422.20 : x
  2. Step 2: Convert to fraction form
    55,287.60/76,297.02 = 31,422.20/x
  3. Step 3: Cross multiply
    55,287.60x = 76,297.02 × 31,422.20
  4. Step 4: Simplify right side
    55,287.60x = 2,397,420,221.84
  5. Step 5: Solve for x
    x = 2,397,420,221.84/55,287.60
  6. Step 6: Final answer
    x = 43,362.71

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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.