Home / 61,119.50-91,693.60-18,997.42

Finding the Fourth Proportional to 61,119.50, 91,693.60 and 18,997.42

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Solution

The fourth proportional to 61,119.50, 91,693.60 and 18,997.42 is: 28,500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,119.50 : 91,693.60 = 18,997.42 : x
  2. Step 2: Convert to fraction form
    61,119.50/91,693.60 = 18,997.42/x
  3. Step 3: Cross multiply
    61,119.50x = 91,693.60 × 18,997.42
  4. Step 4: Simplify right side
    61,119.50x = 1,741,941,830.51
  5. Step 5: Solve for x
    x = 1,741,941,830.51/61,119.50
  6. Step 6: Final answer
    x = 28,500.59

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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.