Home / 55,077.12-76,014.72-31,204.80

Finding the Fourth Proportional to 55,077.12, 76,014.72 and 31,204.80

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Solution

The fourth proportional to 55,077.12, 76,014.72 and 31,204.80 is: 43,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,077.12 : 76,014.72 = 31,204.80 : x
  2. Step 2: Convert to fraction form
    55,077.12/76,014.72 = 31,204.80/x
  3. Step 3: Cross multiply
    55,077.12x = 76,014.72 × 31,204.80
  4. Step 4: Simplify right side
    55,077.12x = 2,372,024,134.66
  5. Step 5: Solve for x
    x = 2,372,024,134.66/55,077.12
  6. Step 6: Final answer
    x = 43,067.32

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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.