Home / 55,721.34-83,580.99-13,600.75

Finding the Fourth Proportional to 55,721.34, 83,580.99 and 13,600.75

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Solution

The fourth proportional to 55,721.34, 83,580.99 and 13,600.75 is: 20,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.34 : 83,580.99 = 13,600.75 : x
  2. Step 2: Convert to fraction form
    55,721.34/83,580.99 = 13,600.75/x
  3. Step 3: Cross multiply
    55,721.34x = 83,580.99 × 13,600.75
  4. Step 4: Simplify right side
    55,721.34x = 1,136,763,967.22
  5. Step 5: Solve for x
    x = 1,136,763,967.22/55,721.34
  6. Step 6: Final answer
    x = 20,400.87

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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.