Home / 85,971.16-118,640.26-48,245.40

Finding the Fourth Proportional to 85,971.16, 118,640.26 and 48,245.40

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Solution

The fourth proportional to 85,971.16, 118,640.26 and 48,245.40 is: 66,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,971.16 : 118,640.26 = 48,245.40 : x
  2. Step 2: Convert to fraction form
    85,971.16/118,640.26 = 48,245.40/x
  3. Step 3: Cross multiply
    85,971.16x = 118,640.26 × 48,245.40
  4. Step 4: Simplify right side
    85,971.16x = 5,723,846,799.80
  5. Step 5: Solve for x
    x = 5,723,846,799.80/85,971.16
  6. Step 6: Final answer
    x = 66,578.69

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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.