Home / 56,519.98-77,998.60-31,028.75

Finding the Fourth Proportional to 56,519.98, 77,998.60 and 31,028.75

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Solution

The fourth proportional to 56,519.98, 77,998.60 and 31,028.75 is: 42,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,519.98 : 77,998.60 = 31,028.75 : x
  2. Step 2: Convert to fraction form
    56,519.98/77,998.60 = 31,028.75/x
  3. Step 3: Cross multiply
    56,519.98x = 77,998.60 × 31,028.75
  4. Step 4: Simplify right side
    56,519.98x = 2,420,198,607.13
  5. Step 5: Solve for x
    x = 2,420,198,607.13/56,519.98
  6. Step 6: Final answer
    x = 42,820.23

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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.