Home / 55,321.95-76,343.58-31,447.05

Finding the Fourth Proportional to 55,321.95, 76,343.58 and 31,447.05

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Solution

The fourth proportional to 55,321.95, 76,343.58 and 31,447.05 is: 43,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.95 : 76,343.58 = 31,447.05 : x
  2. Step 2: Convert to fraction form
    55,321.95/76,343.58 = 31,447.05/x
  3. Step 3: Cross multiply
    55,321.95x = 76,343.58 × 31,447.05
  4. Step 4: Simplify right side
    55,321.95x = 2,400,780,377.44
  5. Step 5: Solve for x
    x = 2,400,780,377.44/55,321.95
  6. Step 6: Final answer
    x = 43,396.52

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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.