Home / 69,099.08-103,638.29-19,173.92

Finding the Fourth Proportional to 69,099.08, 103,638.29 and 19,173.92

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Solution

The fourth proportional to 69,099.08, 103,638.29 and 19,173.92 is: 28,758.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,099.08 : 103,638.29 = 19,173.92 : x
  2. Step 2: Convert to fraction form
    69,099.08/103,638.29 = 19,173.92/x
  3. Step 3: Cross multiply
    69,099.08x = 103,638.29 × 19,173.92
  4. Step 4: Simplify right side
    69,099.08x = 1,987,151,667.34
  5. Step 5: Solve for x
    x = 1,987,151,667.34/69,099.08
  6. Step 6: Final answer
    x = 28,758.01

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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.