Home / 69,935.52-96,511.20-39,720.84

Finding the Fourth Proportional to 69,935.52, 96,511.20 and 39,720.84

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Solution

The fourth proportional to 69,935.52, 96,511.20 and 39,720.84 is: 54,814.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,935.52 : 96,511.20 = 39,720.84 : x
  2. Step 2: Convert to fraction form
    69,935.52/96,511.20 = 39,720.84/x
  3. Step 3: Cross multiply
    69,935.52x = 96,511.20 × 39,720.84
  4. Step 4: Simplify right side
    69,935.52x = 3,833,505,933.41
  5. Step 5: Solve for x
    x = 3,833,505,933.41/69,935.52
  6. Step 6: Final answer
    x = 54,814.86

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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.