Home / 57,214.37-78,956.85-31,375.02

Finding the Fourth Proportional to 57,214.37, 78,956.85 and 31,375.02

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Solution

The fourth proportional to 57,214.37, 78,956.85 and 31,375.02 is: 43,298.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,214.37 : 78,956.85 = 31,375.02 : x
  2. Step 2: Convert to fraction form
    57,214.37/78,956.85 = 31,375.02/x
  3. Step 3: Cross multiply
    57,214.37x = 78,956.85 × 31,375.02
  4. Step 4: Simplify right side
    57,214.37x = 2,477,272,851.32
  5. Step 5: Solve for x
    x = 2,477,272,851.32/57,214.37
  6. Step 6: Final answer
    x = 43,298.09

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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.