Home / 78,576.45-117,875.67-25,250.51

Finding the Fourth Proportional to 78,576.45, 117,875.67 and 25,250.51

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Solution

The fourth proportional to 78,576.45, 117,875.67 and 25,250.51 is: 37,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,576.45 : 117,875.67 = 25,250.51 : x
  2. Step 2: Convert to fraction form
    78,576.45/117,875.67 = 25,250.51/x
  3. Step 3: Cross multiply
    78,576.45x = 117,875.67 × 25,250.51
  4. Step 4: Simplify right side
    78,576.45x = 2,976,420,194.71
  5. Step 5: Solve for x
    x = 2,976,420,194.71/78,576.45
  6. Step 6: Final answer
    x = 37,879.29

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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.