Home / 57,989-79,425.20-54,584.56

Finding the Fourth Proportional to 57,989, 79,425.20 and 54,584.56

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Solution

The fourth proportional to 57,989, 79,425.20 and 54,584.56 is: 74,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,989 : 79,425.20 = 54,584.56 : x
  2. Step 2: Convert to fraction form
    57,989/79,425.20 = 54,584.56/x
  3. Step 3: Cross multiply
    57,989x = 79,425.20 × 54,584.56
  4. Step 4: Simplify right side
    57,989x = 4,335,389,594.91
  5. Step 5: Solve for x
    x = 4,335,389,594.91/57,989
  6. Step 6: Final answer
    x = 74,762.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.