Home / 57,403.45-79,189.18-49,431.84

Finding the Fourth Proportional to 57,403.45, 79,189.18 and 49,431.84

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Solution

The fourth proportional to 57,403.45, 79,189.18 and 49,431.84 is: 68,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,403.45 : 79,189.18 = 49,431.84 : x
  2. Step 2: Convert to fraction form
    57,403.45/79,189.18 = 49,431.84/x
  3. Step 3: Cross multiply
    57,403.45x = 79,189.18 × 49,431.84
  4. Step 4: Simplify right side
    57,403.45x = 3,914,466,454.95
  5. Step 5: Solve for x
    x = 3,914,466,454.95/57,403.45
  6. Step 6: Final answer
    x = 68,192.18

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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.