Home / 55,991.24-77,268.12-30,840.68

Finding the Fourth Proportional to 55,991.24, 77,268.12 and 30,840.68

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Solution

The fourth proportional to 55,991.24, 77,268.12 and 30,840.68 is: 42,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,991.24 : 77,268.12 = 30,840.68 : x
  2. Step 2: Convert to fraction form
    55,991.24/77,268.12 = 30,840.68/x
  3. Step 3: Cross multiply
    55,991.24x = 77,268.12 × 30,840.68
  4. Step 4: Simplify right side
    55,991.24x = 2,383,001,363.12
  5. Step 5: Solve for x
    x = 2,383,001,363.12/55,991.24
  6. Step 6: Final answer
    x = 42,560.25

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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.