Home / 85,645.18-118,180.48-49,351.92

Finding the Fourth Proportional to 85,645.18, 118,180.48 and 49,351.92

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Solution

The fourth proportional to 85,645.18, 118,180.48 and 49,351.92 is: 68,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,645.18 : 118,180.48 = 49,351.92 : x
  2. Step 2: Convert to fraction form
    85,645.18/118,180.48 = 49,351.92/x
  3. Step 3: Cross multiply
    85,645.18x = 118,180.48 × 49,351.92
  4. Step 4: Simplify right side
    85,645.18x = 5,832,433,594.52
  5. Step 5: Solve for x
    x = 5,832,433,594.52/85,645.18
  6. Step 6: Final answer
    x = 68,099.96

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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.