Home / 57,035.52-78,704.64-31,881.60

Finding the Fourth Proportional to 57,035.52, 78,704.64 and 31,881.60

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Solution

The fourth proportional to 57,035.52, 78,704.64 and 31,881.60 is: 43,994.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,035.52 : 78,704.64 = 31,881.60 : x
  2. Step 2: Convert to fraction form
    57,035.52/78,704.64 = 31,881.60/x
  3. Step 3: Cross multiply
    57,035.52x = 78,704.64 × 31,881.60
  4. Step 4: Simplify right side
    57,035.52x = 2,509,229,850.62
  5. Step 5: Solve for x
    x = 2,509,229,850.62/57,035.52
  6. Step 6: Final answer
    x = 43,994.16

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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.