Home / 55,619.20-83,428.80-22,355.20

Finding the Fourth Proportional to 55,619.20, 83,428.80 and 22,355.20

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Solution

The fourth proportional to 55,619.20, 83,428.80 and 22,355.20 is: 33,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.20 : 83,428.80 = 22,355.20 : x
  2. Step 2: Convert to fraction form
    55,619.20/83,428.80 = 22,355.20/x
  3. Step 3: Cross multiply
    55,619.20x = 83,428.80 × 22,355.20
  4. Step 4: Simplify right side
    55,619.20x = 1,865,067,509.76
  5. Step 5: Solve for x
    x = 1,865,067,509.76/55,619.20
  6. Step 6: Final answer
    x = 33,532.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.