Home / 62,819.13-86,710.59-40,218.99

Finding the Fourth Proportional to 62,819.13, 86,710.59 and 40,218.99

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Solution

The fourth proportional to 62,819.13, 86,710.59 and 40,218.99 is: 55,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.13 : 86,710.59 = 40,218.99 : x
  2. Step 2: Convert to fraction form
    62,819.13/86,710.59 = 40,218.99/x
  3. Step 3: Cross multiply
    62,819.13x = 86,710.59 × 40,218.99
  4. Step 4: Simplify right side
    62,819.13x = 3,487,412,352.10
  5. Step 5: Solve for x
    x = 3,487,412,352.10/62,819.13
  6. Step 6: Final answer
    x = 55,515.13

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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.