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Finding the Fourth Proportional to 69,248.08, 103,872.36 and 20,000.08

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Solution

The fourth proportional to 69,248.08, 103,872.36 and 20,000.08 is: 30,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,248.08 : 103,872.36 = 20,000.08 : x
  2. Step 2: Convert to fraction form
    69,248.08/103,872.36 = 20,000.08/x
  3. Step 3: Cross multiply
    69,248.08x = 103,872.36 × 20,000.08
  4. Step 4: Simplify right side
    69,248.08x = 2,077,455,509.79
  5. Step 5: Solve for x
    x = 2,077,455,509.79/69,248.08
  6. Step 6: Final answer
    x = 30,000.19

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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.