Home / 61,118.25-91,690.37-18,997.32

Finding the Fourth Proportional to 61,118.25, 91,690.37 and 18,997.32

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Solution

The fourth proportional to 61,118.25, 91,690.37 and 18,997.32 is: 28,500.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,118.25 : 91,690.37 = 18,997.32 : x
  2. Step 2: Convert to fraction form
    61,118.25/91,690.37 = 18,997.32/x
  3. Step 3: Cross multiply
    61,118.25x = 91,690.37 × 18,997.32
  4. Step 4: Simplify right side
    61,118.25x = 1,741,871,204.82
  5. Step 5: Solve for x
    x = 1,741,871,204.82/61,118.25
  6. Step 6: Final answer
    x = 28,500.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.