Home / 55,685.68-76,845.30-31,486.25

Finding the Fourth Proportional to 55,685.68, 76,845.30 and 31,486.25

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Solution

The fourth proportional to 55,685.68, 76,845.30 and 31,486.25 is: 43,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.68 : 76,845.30 = 31,486.25 : x
  2. Step 2: Convert to fraction form
    55,685.68/76,845.30 = 31,486.25/x
  3. Step 3: Cross multiply
    55,685.68x = 76,845.30 × 31,486.25
  4. Step 4: Simplify right side
    55,685.68x = 2,419,570,327.13
  5. Step 5: Solve for x
    x = 2,419,570,327.13/55,685.68
  6. Step 6: Final answer
    x = 43,450.49

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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.