Home / 51,311.68-70,811.41-28,649.77

Finding the Fourth Proportional to 51,311.68, 70,811.41 and 28,649.77

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Solution

The fourth proportional to 51,311.68, 70,811.41 and 28,649.77 is: 39,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.68 : 70,811.41 = 28,649.77 : x
  2. Step 2: Convert to fraction form
    51,311.68/70,811.41 = 28,649.77/x
  3. Step 3: Cross multiply
    51,311.68x = 70,811.41 × 28,649.77
  4. Step 4: Simplify right side
    51,311.68x = 2,028,730,609.88
  5. Step 5: Solve for x
    x = 2,028,730,609.88/51,311.68
  6. Step 6: Final answer
    x = 39,537.40

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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.