Home / 86,747.79-119,710.39-49,021.23

Finding the Fourth Proportional to 86,747.79, 119,710.39 and 49,021.23

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Solution

The fourth proportional to 86,747.79, 119,710.39 and 49,021.23 is: 67,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747.79 : 119,710.39 = 49,021.23 : x
  2. Step 2: Convert to fraction form
    86,747.79/119,710.39 = 49,021.23/x
  3. Step 3: Cross multiply
    86,747.79x = 119,710.39 × 49,021.23
  4. Step 4: Simplify right side
    86,747.79x = 5,868,350,561.58
  5. Step 5: Solve for x
    x = 5,868,350,561.58/86,747.79
  6. Step 6: Final answer
    x = 67,648.42

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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.