Home / 69,720.51-96,214.03-39,511.59

Finding the Fourth Proportional to 69,720.51, 96,214.03 and 39,511.59

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Solution

The fourth proportional to 69,720.51, 96,214.03 and 39,511.59 is: 54,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,720.51 : 96,214.03 = 39,511.59 : x
  2. Step 2: Convert to fraction form
    69,720.51/96,214.03 = 39,511.59/x
  3. Step 3: Cross multiply
    69,720.51x = 96,214.03 × 39,511.59
  4. Step 4: Simplify right side
    69,720.51x = 3,801,569,305.61
  5. Step 5: Solve for x
    x = 3,801,569,305.61/69,720.51
  6. Step 6: Final answer
    x = 54,525.84

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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.