Home / 56,849.88-78,474.45-42,743.70

Finding the Fourth Proportional to 56,849.88, 78,474.45 and 42,743.70

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Solution

The fourth proportional to 56,849.88, 78,474.45 and 42,743.70 is: 59,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,849.88 : 78,474.45 = 42,743.70 : x
  2. Step 2: Convert to fraction form
    56,849.88/78,474.45 = 42,743.70/x
  3. Step 3: Cross multiply
    56,849.88x = 78,474.45 × 42,743.70
  4. Step 4: Simplify right side
    56,849.88x = 3,354,288,348.47
  5. Step 5: Solve for x
    x = 3,354,288,348.47/56,849.88
  6. Step 6: Final answer
    x = 59,002.56

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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.