Home / 55,910.25-77,157.77-30,759.75

Finding the Fourth Proportional to 55,910.25, 77,157.77 and 30,759.75

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Solution

The fourth proportional to 55,910.25, 77,157.77 and 30,759.75 is: 42,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.25 : 77,157.77 = 30,759.75 : x
  2. Step 2: Convert to fraction form
    55,910.25/77,157.77 = 30,759.75/x
  3. Step 3: Cross multiply
    55,910.25x = 77,157.77 × 30,759.75
  4. Step 4: Simplify right side
    55,910.25x = 2,373,353,561.96
  5. Step 5: Solve for x
    x = 2,373,353,561.96/55,910.25
  6. Step 6: Final answer
    x = 42,449.35

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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.