Home / 69,742.80-96,246.72-39,531.20

Finding the Fourth Proportional to 69,742.80, 96,246.72 and 39,531.20

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Solution

The fourth proportional to 69,742.80, 96,246.72 and 39,531.20 is: 54,553.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,742.80 : 96,246.72 = 39,531.20 : x
  2. Step 2: Convert to fraction form
    69,742.80/96,246.72 = 39,531.20/x
  3. Step 3: Cross multiply
    69,742.80x = 96,246.72 × 39,531.20
  4. Step 4: Simplify right side
    69,742.80x = 3,804,748,337.66
  5. Step 5: Solve for x
    x = 3,804,748,337.66/69,742.80
  6. Step 6: Final answer
    x = 54,553.99

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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.