Home / 66,537.68-99,806.52-31,429.04

Finding the Fourth Proportional to 66,537.68, 99,806.52 and 31,429.04

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Solution

The fourth proportional to 66,537.68, 99,806.52 and 31,429.04 is: 47,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,537.68 : 99,806.52 = 31,429.04 : x
  2. Step 2: Convert to fraction form
    66,537.68/99,806.52 = 31,429.04/x
  3. Step 3: Cross multiply
    66,537.68x = 99,806.52 × 31,429.04
  4. Step 4: Simplify right side
    66,537.68x = 3,136,823,109.34
  5. Step 5: Solve for x
    x = 3,136,823,109.34/66,537.68
  6. Step 6: Final answer
    x = 47,143.56

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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.