Home / 45,136.35-67,808.32-31,839.94

Finding the Fourth Proportional to 45,136.35, 67,808.32 and 31,839.94

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Solution

The fourth proportional to 45,136.35, 67,808.32 and 31,839.94 is: 47,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,136.35 : 67,808.32 = 31,839.94 : x
  2. Step 2: Convert to fraction form
    45,136.35/67,808.32 = 31,839.94/x
  3. Step 3: Cross multiply
    45,136.35x = 67,808.32 × 31,839.94
  4. Step 4: Simplify right side
    45,136.35x = 2,159,013,061.98
  5. Step 5: Solve for x
    x = 2,159,013,061.98/45,136.35
  6. Step 6: Final answer
    x = 47,833.14

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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.