Home / 65,538.81-98,297.28-18,780.75

Finding the Fourth Proportional to 65,538.81, 98,297.28 and 18,780.75

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Solution

The fourth proportional to 65,538.81, 98,297.28 and 18,780.75 is: 28,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,538.81 : 98,297.28 = 18,780.75 : x
  2. Step 2: Convert to fraction form
    65,538.81/98,297.28 = 18,780.75/x
  3. Step 3: Cross multiply
    65,538.81x = 98,297.28 × 18,780.75
  4. Step 4: Simplify right side
    65,538.81x = 1,846,096,641.36
  5. Step 5: Solve for x
    x = 1,846,096,641.36/65,538.81
  6. Step 6: Final answer
    x = 28,167.99

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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.