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Finding the Fourth Proportional to 57,775.80, 79,767.66 and 47,190.84

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Solution

The fourth proportional to 57,775.80, 79,767.66 and 47,190.84 is: 65,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,775.80 : 79,767.66 = 47,190.84 : x
  2. Step 2: Convert to fraction form
    57,775.80/79,767.66 = 47,190.84/x
  3. Step 3: Cross multiply
    57,775.80x = 79,767.66 × 47,190.84
  4. Step 4: Simplify right side
    57,775.80x = 3,764,302,880.23
  5. Step 5: Solve for x
    x = 3,764,302,880.23/57,775.80
  6. Step 6: Final answer
    x = 65,153.63

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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.