Home / 57,485.64-79,344.18-54,180.84

Finding the Fourth Proportional to 57,485.64, 79,344.18 and 54,180.84

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Solution

The fourth proportional to 57,485.64, 79,344.18 and 54,180.84 is: 74,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,485.64 : 79,344.18 = 54,180.84 : x
  2. Step 2: Convert to fraction form
    57,485.64/79,344.18 = 54,180.84/x
  3. Step 3: Cross multiply
    57,485.64x = 79,344.18 × 54,180.84
  4. Step 4: Simplify right side
    57,485.64x = 4,298,934,321.51
  5. Step 5: Solve for x
    x = 4,298,934,321.51/57,485.64
  6. Step 6: Final answer
    x = 74,782.75

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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.