Home / 69,917.72-96,487.07-39,703.66

Finding the Fourth Proportional to 69,917.72, 96,487.07 and 39,703.66

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Solution

The fourth proportional to 69,917.72, 96,487.07 and 39,703.66 is: 54,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,917.72 : 96,487.07 = 39,703.66 : x
  2. Step 2: Convert to fraction form
    69,917.72/96,487.07 = 39,703.66/x
  3. Step 3: Cross multiply
    69,917.72x = 96,487.07 × 39,703.66
  4. Step 4: Simplify right side
    69,917.72x = 3,830,889,381.94
  5. Step 5: Solve for x
    x = 3,830,889,381.94/69,917.72
  6. Step 6: Final answer
    x = 54,791.40

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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.