Home / 57,147.66-79,338.83-55,436.94

Finding the Fourth Proportional to 57,147.66, 79,338.83 and 55,436.94

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Solution

The fourth proportional to 57,147.66, 79,338.83 and 55,436.94 is: 76,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,147.66 : 79,338.83 = 55,436.94 : x
  2. Step 2: Convert to fraction form
    57,147.66/79,338.83 = 55,436.94/x
  3. Step 3: Cross multiply
    57,147.66x = 79,338.83 × 55,436.94
  4. Step 4: Simplify right side
    57,147.66x = 4,398,301,681.20
  5. Step 5: Solve for x
    x = 4,398,301,681.20/57,147.66
  6. Step 6: Final answer
    x = 76,963.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.