Home / 75,020.15-103,540.54-43,207.47

Finding the Fourth Proportional to 75,020.15, 103,540.54 and 43,207.47

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Solution

The fourth proportional to 75,020.15, 103,540.54 and 43,207.47 is: 59,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,020.15 : 103,540.54 = 43,207.47 : x
  2. Step 2: Convert to fraction form
    75,020.15/103,540.54 = 43,207.47/x
  3. Step 3: Cross multiply
    75,020.15x = 103,540.54 × 43,207.47
  4. Step 4: Simplify right side
    75,020.15x = 4,473,724,775.83
  5. Step 5: Solve for x
    x = 4,473,724,775.83/75,020.15
  6. Step 6: Final answer
    x = 59,633.64

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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.