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Finding the Fourth Proportional to 86,057.46, 118,760.82 and 47,820.54

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Solution

The fourth proportional to 86,057.46, 118,760.82 and 47,820.54 is: 65,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,057.46 : 118,760.82 = 47,820.54 : x
  2. Step 2: Convert to fraction form
    86,057.46/118,760.82 = 47,820.54/x
  3. Step 3: Cross multiply
    86,057.46x = 118,760.82 × 47,820.54
  4. Step 4: Simplify right side
    86,057.46x = 5,679,206,543.24
  5. Step 5: Solve for x
    x = 5,679,206,543.24/86,057.46
  6. Step 6: Final answer
    x = 65,993.19

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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.