Home / 85,566.18-118,100.07-49,776.78

Finding the Fourth Proportional to 85,566.18, 118,100.07 and 49,776.78

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Solution

The fourth proportional to 85,566.18, 118,100.07 and 49,776.78 is: 68,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,566.18 : 118,100.07 = 49,776.78 : x
  2. Step 2: Convert to fraction form
    85,566.18/118,100.07 = 49,776.78/x
  3. Step 3: Cross multiply
    85,566.18x = 118,100.07 × 49,776.78
  4. Step 4: Simplify right side
    85,566.18x = 5,878,641,202.37
  5. Step 5: Solve for x
    x = 5,878,641,202.37/85,566.18
  6. Step 6: Final answer
    x = 68,702.86

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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.