Home / 78,595.76-117,908.21-26,005.70

Finding the Fourth Proportional to 78,595.76, 117,908.21 and 26,005.70

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Solution

The fourth proportional to 78,595.76, 117,908.21 and 26,005.70 is: 39,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,595.76 : 117,908.21 = 26,005.70 : x
  2. Step 2: Convert to fraction form
    78,595.76/117,908.21 = 26,005.70/x
  3. Step 3: Cross multiply
    78,595.76x = 117,908.21 × 26,005.70
  4. Step 4: Simplify right side
    78,595.76x = 3,066,285,896.58
  5. Step 5: Solve for x
    x = 3,066,285,896.58/78,595.76
  6. Step 6: Final answer
    x = 39,013.37

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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.