Home / 85,520.25-118,015.79-47,794.77

Finding the Fourth Proportional to 85,520.25, 118,015.79 and 47,794.77

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Solution

The fourth proportional to 85,520.25, 118,015.79 and 47,794.77 is: 65,955.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.25 : 118,015.79 = 47,794.77 : x
  2. Step 2: Convert to fraction form
    85,520.25/118,015.79 = 47,794.77/x
  3. Step 3: Cross multiply
    85,520.25x = 118,015.79 × 47,794.77
  4. Step 4: Simplify right side
    85,520.25x = 5,640,537,300.44
  5. Step 5: Solve for x
    x = 5,640,537,300.44/85,520.25
  6. Step 6: Final answer
    x = 65,955.58

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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.