Home / 86,105.18-118,820.58-48,377

Finding the Fourth Proportional to 86,105.18, 118,820.58 and 48,377

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Solution

The fourth proportional to 86,105.18, 118,820.58 and 48,377 is: 66,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,105.18 : 118,820.58 = 48,377 : x
  2. Step 2: Convert to fraction form
    86,105.18/118,820.58 = 48,377/x
  3. Step 3: Cross multiply
    86,105.18x = 118,820.58 × 48,377
  4. Step 4: Simplify right side
    86,105.18x = 5,748,183,198.66
  5. Step 5: Solve for x
    x = 5,748,183,198.66/86,105.18
  6. Step 6: Final answer
    x = 66,757.69

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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.