Home / 87,704.46-121,031.91-47,417.94

Finding the Fourth Proportional to 87,704.46, 121,031.91 and 47,417.94

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Solution

The fourth proportional to 87,704.46, 121,031.91 and 47,417.94 is: 65,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.46 : 121,031.91 = 47,417.94 : x
  2. Step 2: Convert to fraction form
    87,704.46/121,031.91 = 47,417.94/x
  3. Step 3: Cross multiply
    87,704.46x = 121,031.91 × 47,417.94
  4. Step 4: Simplify right side
    87,704.46x = 5,739,083,846.47
  5. Step 5: Solve for x
    x = 5,739,083,846.47/87,704.46
  6. Step 6: Final answer
    x = 65,436.62

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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.