Home / 74,016.59-111,031.93-20,708.60

Finding the Fourth Proportional to 74,016.59, 111,031.93 and 20,708.60

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Solution

The fourth proportional to 74,016.59, 111,031.93 and 20,708.60 is: 31,064.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,016.59 : 111,031.93 = 20,708.60 : x
  2. Step 2: Convert to fraction form
    74,016.59/111,031.93 = 20,708.60/x
  3. Step 3: Cross multiply
    74,016.59x = 111,031.93 × 20,708.60
  4. Step 4: Simplify right side
    74,016.59x = 2,299,315,296.32
  5. Step 5: Solve for x
    x = 2,299,315,296.32/74,016.59
  6. Step 6: Final answer
    x = 31,064.87

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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.