Home / 45,658.26-68,509.11-31,639.86

Finding the Fourth Proportional to 45,658.26, 68,509.11 and 31,639.86

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Solution

The fourth proportional to 45,658.26, 68,509.11 and 31,639.86 is: 47,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,658.26 : 68,509.11 = 31,639.86 : x
  2. Step 2: Convert to fraction form
    45,658.26/68,509.11 = 31,639.86/x
  3. Step 3: Cross multiply
    45,658.26x = 68,509.11 × 31,639.86
  4. Step 4: Simplify right side
    45,658.26x = 2,167,618,649.12
  5. Step 5: Solve for x
    x = 2,167,618,649.12/45,658.26
  6. Step 6: Final answer
    x = 47,474.84

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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.