Home / 90,863.91-136,317.84-28,534.41

Finding the Fourth Proportional to 90,863.91, 136,317.84 and 28,534.41

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Solution

The fourth proportional to 90,863.91, 136,317.84 and 28,534.41 is: 42,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,863.91 : 136,317.84 = 28,534.41 : x
  2. Step 2: Convert to fraction form
    90,863.91/136,317.84 = 28,534.41/x
  3. Step 3: Cross multiply
    90,863.91x = 136,317.84 × 28,534.41
  4. Step 4: Simplify right side
    90,863.91x = 3,889,749,136.87
  5. Step 5: Solve for x
    x = 3,889,749,136.87/90,863.91
  6. Step 6: Final answer
    x = 42,808.52

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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.