Home / 78,983.40-118,283.10-41,965.80

Finding the Fourth Proportional to 78,983.40, 118,283.10 and 41,965.80

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Solution

The fourth proportional to 78,983.40, 118,283.10 and 41,965.80 is: 62,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,983.40 : 118,283.10 = 41,965.80 : x
  2. Step 2: Convert to fraction form
    78,983.40/118,283.10 = 41,965.80/x
  3. Step 3: Cross multiply
    78,983.40x = 118,283.10 × 41,965.80
  4. Step 4: Simplify right side
    78,983.40x = 4,963,844,917.98
  5. Step 5: Solve for x
    x = 4,963,844,917.98/78,983.40
  6. Step 6: Final answer
    x = 62,846.69

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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.