Home / 51,341.43-77,031.24-31,391.82

Finding the Fourth Proportional to 51,341.43, 77,031.24 and 31,391.82

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Solution

The fourth proportional to 51,341.43, 77,031.24 and 31,391.82 is: 47,099.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,341.43 : 77,031.24 = 31,391.82 : x
  2. Step 2: Convert to fraction form
    51,341.43/77,031.24 = 31,391.82/x
  3. Step 3: Cross multiply
    51,341.43x = 77,031.24 × 31,391.82
  4. Step 4: Simplify right side
    51,341.43x = 2,418,150,820.46
  5. Step 5: Solve for x
    x = 2,418,150,820.46/51,341.43
  6. Step 6: Final answer
    x = 47,099.41

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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.