Home / 62,869.52-86,744.70-39,890.97

Finding the Fourth Proportional to 62,869.52, 86,744.70 and 39,890.97

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Solution

The fourth proportional to 62,869.52, 86,744.70 and 39,890.97 is: 55,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,869.52 : 86,744.70 = 39,890.97 : x
  2. Step 2: Convert to fraction form
    62,869.52/86,744.70 = 39,890.97/x
  3. Step 3: Cross multiply
    62,869.52x = 86,744.70 × 39,890.97
  4. Step 4: Simplify right side
    62,869.52x = 3,460,330,225.36
  5. Step 5: Solve for x
    x = 3,460,330,225.36/62,869.52
  6. Step 6: Final answer
    x = 55,039.87

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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.