Home / 78,982.40-118,281.60-41,964.80

Finding the Fourth Proportional to 78,982.40, 118,281.60 and 41,964.80

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Solution

The fourth proportional to 78,982.40, 118,281.60 and 41,964.80 is: 62,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,982.40 : 118,281.60 = 41,964.80 : x
  2. Step 2: Convert to fraction form
    78,982.40/118,281.60 = 41,964.80/x
  3. Step 3: Cross multiply
    78,982.40x = 118,281.60 × 41,964.80
  4. Step 4: Simplify right side
    78,982.40x = 4,963,663,687.68
  5. Step 5: Solve for x
    x = 4,963,663,687.68/78,982.40
  6. Step 6: Final answer
    x = 62,845.19

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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.