Home / 86,741.90-119,657.66-52,760.78

Finding the Fourth Proportional to 86,741.90, 119,657.66 and 52,760.78

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Solution

The fourth proportional to 86,741.90, 119,657.66 and 52,760.78 is: 72,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,741.90 : 119,657.66 = 52,760.78 : x
  2. Step 2: Convert to fraction form
    86,741.90/119,657.66 = 52,760.78/x
  3. Step 3: Cross multiply
    86,741.90x = 119,657.66 × 52,760.78
  4. Step 4: Simplify right side
    86,741.90x = 6,313,231,734.27
  5. Step 5: Solve for x
    x = 6,313,231,734.27/86,741.90
  6. Step 6: Final answer
    x = 72,781.80

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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.