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Finding the Fourth Proportional to 69,645.89, 104,466.81 and 19,725.89

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Solution

The fourth proportional to 69,645.89, 104,466.81 and 19,725.89 is: 29,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,645.89 : 104,466.81 = 19,725.89 : x
  2. Step 2: Convert to fraction form
    69,645.89/104,466.81 = 19,725.89/x
  3. Step 3: Cross multiply
    69,645.89x = 104,466.81 × 19,725.89
  4. Step 4: Simplify right side
    69,645.89x = 2,060,700,280.38
  5. Step 5: Solve for x
    x = 2,060,700,280.38/69,645.89
  6. Step 6: Final answer
    x = 29,588.26

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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.