Home / 57,532.34-86,310.30-21,991.16

Finding the Fourth Proportional to 57,532.34, 86,310.30 and 21,991.16

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Solution

The fourth proportional to 57,532.34, 86,310.30 and 21,991.16 is: 32,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,532.34 : 86,310.30 = 21,991.16 : x
  2. Step 2: Convert to fraction form
    57,532.34/86,310.30 = 21,991.16/x
  3. Step 3: Cross multiply
    57,532.34x = 86,310.30 × 21,991.16
  4. Step 4: Simplify right side
    57,532.34x = 1,898,063,616.95
  5. Step 5: Solve for x
    x = 1,898,063,616.95/57,532.34
  6. Step 6: Final answer
    x = 32,991.25

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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.