Home / 86,997.80-120,055.62-48,757.30

Finding the Fourth Proportional to 86,997.80, 120,055.62 and 48,757.30

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Solution

The fourth proportional to 86,997.80, 120,055.62 and 48,757.30 is: 67,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,997.80 : 120,055.62 = 48,757.30 : x
  2. Step 2: Convert to fraction form
    86,997.80/120,055.62 = 48,757.30/x
  3. Step 3: Cross multiply
    86,997.80x = 120,055.62 × 48,757.30
  4. Step 4: Simplify right side
    86,997.80x = 5,853,587,881.03
  5. Step 5: Solve for x
    x = 5,853,587,881.03/86,997.80
  6. Step 6: Final answer
    x = 67,284.32

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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.