Home / 69,822.39-96,364.80-39,615.21

Finding the Fourth Proportional to 69,822.39, 96,364.80 and 39,615.21

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Solution

The fourth proportional to 69,822.39, 96,364.80 and 39,615.21 is: 54,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,822.39 : 96,364.80 = 39,615.21 : x
  2. Step 2: Convert to fraction form
    69,822.39/96,364.80 = 39,615.21/x
  3. Step 3: Cross multiply
    69,822.39x = 96,364.80 × 39,615.21
  4. Step 4: Simplify right side
    69,822.39x = 3,817,511,788.61
  5. Step 5: Solve for x
    x = 3,817,511,788.61/69,822.39
  6. Step 6: Final answer
    x = 54,674.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.