Home / 57,069.46-78,753.87-31,575.42

Finding the Fourth Proportional to 57,069.46, 78,753.87 and 31,575.42

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Solution

The fourth proportional to 57,069.46, 78,753.87 and 31,575.42 is: 43,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069.46 : 78,753.87 = 31,575.42 : x
  2. Step 2: Convert to fraction form
    57,069.46/78,753.87 = 31,575.42/x
  3. Step 3: Cross multiply
    57,069.46x = 78,753.87 × 31,575.42
  4. Step 4: Simplify right side
    57,069.46x = 2,486,686,521.88
  5. Step 5: Solve for x
    x = 2,486,686,521.88/57,069.46
  6. Step 6: Final answer
    x = 43,572.98

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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.