Home / 69,720.46-96,213.95-39,511.53

Finding the Fourth Proportional to 69,720.46, 96,213.95 and 39,511.53

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Solution

The fourth proportional to 69,720.46, 96,213.95 and 39,511.53 is: 54,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,720.46 : 96,213.95 = 39,511.53 : x
  2. Step 2: Convert to fraction form
    69,720.46/96,213.95 = 39,511.53/x
  3. Step 3: Cross multiply
    69,720.46x = 96,213.95 × 39,511.53
  4. Step 4: Simplify right side
    69,720.46x = 3,801,560,322.45
  5. Step 5: Solve for x
    x = 3,801,560,322.45/69,720.46
  6. Step 6: Final answer
    x = 54,525.75

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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.