Home / 57,003.75-78,670.04-31,858.11

Finding the Fourth Proportional to 57,003.75, 78,670.04 and 31,858.11

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Solution

The fourth proportional to 57,003.75, 78,670.04 and 31,858.11 is: 43,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.75 : 78,670.04 = 31,858.11 : x
  2. Step 2: Convert to fraction form
    57,003.75/78,670.04 = 31,858.11/x
  3. Step 3: Cross multiply
    57,003.75x = 78,670.04 × 31,858.11
  4. Step 4: Simplify right side
    57,003.75x = 2,506,278,628.73
  5. Step 5: Solve for x
    x = 2,506,278,628.73/57,003.75
  6. Step 6: Final answer
    x = 43,966.91

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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.