Home / 78,896.44-118,319.10-26,291.80

Finding the Fourth Proportional to 78,896.44, 118,319.10 and 26,291.80

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Solution

The fourth proportional to 78,896.44, 118,319.10 and 26,291.80 is: 39,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,896.44 : 118,319.10 = 26,291.80 : x
  2. Step 2: Convert to fraction form
    78,896.44/118,319.10 = 26,291.80/x
  3. Step 3: Cross multiply
    78,896.44x = 118,319.10 × 26,291.80
  4. Step 4: Simplify right side
    78,896.44x = 3,110,822,113.38
  5. Step 5: Solve for x
    x = 3,110,822,113.38/78,896.44
  6. Step 6: Final answer
    x = 39,429.18

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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.