Home / 78,781.95-118,085.13-41,346.27

Finding the Fourth Proportional to 78,781.95, 118,085.13 and 41,346.27

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Solution

The fourth proportional to 78,781.95, 118,085.13 and 41,346.27 is: 61,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,781.95 : 118,085.13 = 41,346.27 : x
  2. Step 2: Convert to fraction form
    78,781.95/118,085.13 = 41,346.27/x
  3. Step 3: Cross multiply
    78,781.95x = 118,085.13 × 41,346.27
  4. Step 4: Simplify right side
    78,781.95x = 4,882,379,667.97
  5. Step 5: Solve for x
    x = 4,882,379,667.97/78,781.95
  6. Step 6: Final answer
    x = 61,973.33

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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.