Home / 55,975.86-77,245.29-31,781.34

Finding the Fourth Proportional to 55,975.86, 77,245.29 and 31,781.34

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Solution

The fourth proportional to 55,975.86, 77,245.29 and 31,781.34 is: 43,857.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,975.86 : 77,245.29 = 31,781.34 : x
  2. Step 2: Convert to fraction form
    55,975.86/77,245.29 = 31,781.34/x
  3. Step 3: Cross multiply
    55,975.86x = 77,245.29 × 31,781.34
  4. Step 4: Simplify right side
    55,975.86x = 2,454,958,824.89
  5. Step 5: Solve for x
    x = 2,454,958,824.89/55,975.86
  6. Step 6: Final answer
    x = 43,857.46

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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.