Home / 52,371.16-78,561.60-21,208.84

Finding the Fourth Proportional to 52,371.16, 78,561.60 and 21,208.84

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Solution

The fourth proportional to 52,371.16, 78,561.60 and 21,208.84 is: 31,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,371.16 : 78,561.60 = 21,208.84 : x
  2. Step 2: Convert to fraction form
    52,371.16/78,561.60 = 21,208.84/x
  3. Step 3: Cross multiply
    52,371.16x = 78,561.60 × 21,208.84
  4. Step 4: Simplify right side
    52,371.16x = 1,666,200,404.54
  5. Step 5: Solve for x
    x = 1,666,200,404.54/52,371.16
  6. Step 6: Final answer
    x = 31,815.23

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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.