Home / 78,844.10-118,266.15-53,960.90

Finding the Fourth Proportional to 78,844.10, 118,266.15 and 53,960.90

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Solution

The fourth proportional to 78,844.10, 118,266.15 and 53,960.90 is: 80,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,844.10 : 118,266.15 = 53,960.90 : x
  2. Step 2: Convert to fraction form
    78,844.10/118,266.15 = 53,960.90/x
  3. Step 3: Cross multiply
    78,844.10x = 118,266.15 × 53,960.90
  4. Step 4: Simplify right side
    78,844.10x = 6,381,747,893.54
  5. Step 5: Solve for x
    x = 6,381,747,893.54/78,844.10
  6. Step 6: Final answer
    x = 80,941.35

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Similar ratio
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1.5x scale

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.