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Finding the Fourth Proportional to 69,646.47, 104,467.71 and 19,726.48

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Solution

The fourth proportional to 69,646.47, 104,467.71 and 19,726.48 is: 29,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,646.47 : 104,467.71 = 19,726.48 : x
  2. Step 2: Convert to fraction form
    69,646.47/104,467.71 = 19,726.48/x
  3. Step 3: Cross multiply
    69,646.47x = 104,467.71 × 19,726.48
  4. Step 4: Simplify right side
    69,646.47x = 2,060,779,930.79
  5. Step 5: Solve for x
    x = 2,060,779,930.79/69,646.47
  6. Step 6: Final answer
    x = 29,589.15

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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.