Home / 85,520.10-118,015.20-47,794.26

Finding the Fourth Proportional to 85,520.10, 118,015.20 and 47,794.26

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Solution

The fourth proportional to 85,520.10, 118,015.20 and 47,794.26 is: 65,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.10 : 118,015.20 = 47,794.26 : x
  2. Step 2: Convert to fraction form
    85,520.10/118,015.20 = 47,794.26/x
  3. Step 3: Cross multiply
    85,520.10x = 118,015.20 × 47,794.26
  4. Step 4: Simplify right side
    85,520.10x = 5,640,449,152.75
  5. Step 5: Solve for x
    x = 5,640,449,152.75/85,520.10
  6. Step 6: Final answer
    x = 65,954.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.