Home / 69,721.05-96,213.04-39,516.13

Finding the Fourth Proportional to 69,721.05, 96,213.04 and 39,516.13

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Solution

The fourth proportional to 69,721.05, 96,213.04 and 39,516.13 is: 54,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.05 : 96,213.04 = 39,516.13 : x
  2. Step 2: Convert to fraction form
    69,721.05/96,213.04 = 39,516.13/x
  3. Step 3: Cross multiply
    69,721.05x = 96,213.04 × 39,516.13
  4. Step 4: Simplify right side
    69,721.05x = 3,801,966,317.69
  5. Step 5: Solve for x
    x = 3,801,966,317.69/69,721.05
  6. Step 6: Final answer
    x = 54,531.11

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1.5x scale

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.