Home / 51,137.60-76,782.08-31,498.56

Finding the Fourth Proportional to 51,137.60, 76,782.08 and 31,498.56

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Solution

The fourth proportional to 51,137.60, 76,782.08 and 31,498.56 is: 47,294.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,137.60 : 76,782.08 = 31,498.56 : x
  2. Step 2: Convert to fraction form
    51,137.60/76,782.08 = 31,498.56/x
  3. Step 3: Cross multiply
    51,137.60x = 76,782.08 × 31,498.56
  4. Step 4: Simplify right side
    51,137.60x = 2,418,524,953.80
  5. Step 5: Solve for x
    x = 2,418,524,953.80/51,137.60
  6. Step 6: Final answer
    x = 47,294.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.