Home / 55,719.64-83,578.38-13,600

Finding the Fourth Proportional to 55,719.64, 83,578.38 and 13,600

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Solution

The fourth proportional to 55,719.64, 83,578.38 and 13,600 is: 20,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,719.64 : 83,578.38 = 13,600 : x
  2. Step 2: Convert to fraction form
    55,719.64/83,578.38 = 13,600/x
  3. Step 3: Cross multiply
    55,719.64x = 83,578.38 × 13,600
  4. Step 4: Simplify right side
    55,719.64x = 1,136,665,968
  5. Step 5: Solve for x
    x = 1,136,665,968/55,719.64
  6. Step 6: Final answer
    x = 20,399.74

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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.