Home / 54,677.21-75,454.20-30,811.55

Finding the Fourth Proportional to 54,677.21, 75,454.20 and 30,811.55

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Solution

The fourth proportional to 54,677.21, 75,454.20 and 30,811.55 is: 42,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,677.21 : 75,454.20 = 30,811.55 : x
  2. Step 2: Convert to fraction form
    54,677.21/75,454.20 = 30,811.55/x
  3. Step 3: Cross multiply
    54,677.21x = 75,454.20 × 30,811.55
  4. Step 4: Simplify right side
    54,677.21x = 2,324,860,478.74
  5. Step 5: Solve for x
    x = 2,324,860,478.74/54,677.21
  6. Step 6: Final answer
    x = 42,519.74

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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.