Home / 64,987.55-97,481.33-18,239.21

Finding the Fourth Proportional to 64,987.55, 97,481.33 and 18,239.21

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Solution

The fourth proportional to 64,987.55, 97,481.33 and 18,239.21 is: 27,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,987.55 : 97,481.33 = 18,239.21 : x
  2. Step 2: Convert to fraction form
    64,987.55/97,481.33 = 18,239.21/x
  3. Step 3: Cross multiply
    64,987.55x = 97,481.33 × 18,239.21
  4. Step 4: Simplify right side
    64,987.55x = 1,777,981,870.35
  5. Step 5: Solve for x
    x = 1,777,981,870.35/64,987.55
  6. Step 6: Final answer
    x = 27,358.81

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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.