Home / 62,988.92-86,918.39-38,786.00

Finding the Fourth Proportional to 62,988.92, 86,918.39 and 38,786.00

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Solution

The fourth proportional to 62,988.92, 86,918.39 and 38,786.00 is: 53,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.92 : 86,918.39 = 38,786.00 : x
  2. Step 2: Convert to fraction form
    62,988.92/86,918.39 = 38,786.00/x
  3. Step 3: Cross multiply
    62,988.92x = 86,918.39 × 38,786.00
  4. Step 4: Simplify right side
    62,988.92x = 3,371,216,988.80
  5. Step 5: Solve for x
    x = 3,371,216,988.80/62,988.92
  6. Step 6: Final answer
    x = 53,520.80

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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.