Home / 55,387.71-83,136.96-29,147.76

Finding the Fourth Proportional to 55,387.71, 83,136.96 and 29,147.76

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Solution

The fourth proportional to 55,387.71, 83,136.96 and 29,147.76 is: 43,750.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,387.71 : 83,136.96 = 29,147.76 : x
  2. Step 2: Convert to fraction form
    55,387.71/83,136.96 = 29,147.76/x
  3. Step 3: Cross multiply
    55,387.71x = 83,136.96 × 29,147.76
  4. Step 4: Simplify right side
    55,387.71x = 2,423,256,157.21
  5. Step 5: Solve for x
    x = 2,423,256,157.21/55,387.71
  6. Step 6: Final answer
    x = 43,750.79

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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.