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Finding the Fourth Proportional to 69,587.75, 104,368.37 and 19,655.91

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Solution

The fourth proportional to 69,587.75, 104,368.37 and 19,655.91 is: 29,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,587.75 : 104,368.37 = 19,655.91 : x
  2. Step 2: Convert to fraction form
    69,587.75/104,368.37 = 19,655.91/x
  3. Step 3: Cross multiply
    69,587.75x = 104,368.37 × 19,655.91
  4. Step 4: Simplify right side
    69,587.75x = 2,051,455,189.29
  5. Step 5: Solve for x
    x = 2,051,455,189.29/69,587.75
  6. Step 6: Final answer
    x = 29,480.12

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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.