Home / 55,701.28-76,867.74-30,550.78

Finding the Fourth Proportional to 55,701.28, 76,867.74 and 30,550.78

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Solution

The fourth proportional to 55,701.28, 76,867.74 and 30,550.78 is: 42,160.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,701.28 : 76,867.74 = 30,550.78 : x
  2. Step 2: Convert to fraction form
    55,701.28/76,867.74 = 30,550.78/x
  3. Step 3: Cross multiply
    55,701.28x = 76,867.74 × 30,550.78
  4. Step 4: Simplify right side
    55,701.28x = 2,348,369,413.84
  5. Step 5: Solve for x
    x = 2,348,369,413.84/55,701.28
  6. Step 6: Final answer
    x = 42,160.06

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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.