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Finding the Fourth Proportional to 69,805.88, 104,669 and 47,646.08

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Solution

The fourth proportional to 69,805.88, 104,669 and 47,646.08 is: 71,441.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,805.88 : 104,669 = 47,646.08 : x
  2. Step 2: Convert to fraction form
    69,805.88/104,669 = 47,646.08/x
  3. Step 3: Cross multiply
    69,805.88x = 104,669 × 47,646.08
  4. Step 4: Simplify right side
    69,805.88x = 4,987,067,547.52
  5. Step 5: Solve for x
    x = 4,987,067,547.52/69,805.88
  6. Step 6: Final answer
    x = 71,441.94

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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.