Home / 75,136.30-103,688.31-41,145.10

Finding the Fourth Proportional to 75,136.30, 103,688.31 and 41,145.10

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Solution

The fourth proportional to 75,136.30, 103,688.31 and 41,145.10 is: 56,780.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.30 : 103,688.31 = 41,145.10 : x
  2. Step 2: Convert to fraction form
    75,136.30/103,688.31 = 41,145.10/x
  3. Step 3: Cross multiply
    75,136.30x = 103,688.31 × 41,145.10
  4. Step 4: Simplify right side
    75,136.30x = 4,266,265,883.78
  5. Step 5: Solve for x
    x = 4,266,265,883.78/75,136.30
  6. Step 6: Final answer
    x = 56,780.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.