Home / 78,265.47-117,405.24-22,106.16

Finding the Fourth Proportional to 78,265.47, 117,405.24 and 22,106.16

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Solution

The fourth proportional to 78,265.47, 117,405.24 and 22,106.16 is: 33,161.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,265.47 : 117,405.24 = 22,106.16 : x
  2. Step 2: Convert to fraction form
    78,265.47/117,405.24 = 22,106.16/x
  3. Step 3: Cross multiply
    78,265.47x = 117,405.24 × 22,106.16
  4. Step 4: Simplify right side
    78,265.47x = 2,595,379,020.28
  5. Step 5: Solve for x
    x = 2,595,379,020.28/78,265.47
  6. Step 6: Final answer
    x = 33,161.23

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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.