Home / 78,623.78-117,913.78-26,037.37

Finding the Fourth Proportional to 78,623.78, 117,913.78 and 26,037.37

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Solution

The fourth proportional to 78,623.78, 117,913.78 and 26,037.37 is: 39,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,623.78 : 117,913.78 = 26,037.37 : x
  2. Step 2: Convert to fraction form
    78,623.78/117,913.78 = 26,037.37/x
  3. Step 3: Cross multiply
    78,623.78x = 117,913.78 × 26,037.37
  4. Step 4: Simplify right side
    78,623.78x = 3,070,163,998.20
  5. Step 5: Solve for x
    x = 3,070,163,998.20/78,623.78
  6. Step 6: Final answer
    x = 39,048.80

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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.