Home / 78,769.06-118,119.03-29,486.50

Finding the Fourth Proportional to 78,769.06, 118,119.03 and 29,486.50

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Solution

The fourth proportional to 78,769.06, 118,119.03 and 29,486.50 is: 44,216.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,769.06 : 118,119.03 = 29,486.50 : x
  2. Step 2: Convert to fraction form
    78,769.06/118,119.03 = 29,486.50/x
  3. Step 3: Cross multiply
    78,769.06x = 118,119.03 × 29,486.50
  4. Step 4: Simplify right side
    78,769.06x = 3,482,916,778.10
  5. Step 5: Solve for x
    x = 3,482,916,778.10/78,769.06
  6. Step 6: Final answer
    x = 44,216.81

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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.