Home / 75,139.80-103,693.14-41,148.60

Finding the Fourth Proportional to 75,139.80, 103,693.14 and 41,148.60

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Solution

The fourth proportional to 75,139.80, 103,693.14 and 41,148.60 is: 56,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.80 : 103,693.14 = 41,148.60 : x
  2. Step 2: Convert to fraction form
    75,139.80/103,693.14 = 41,148.60/x
  3. Step 3: Cross multiply
    75,139.80x = 103,693.14 × 41,148.60
  4. Step 4: Simplify right side
    75,139.80x = 4,266,827,540.60
  5. Step 5: Solve for x
    x = 4,266,827,540.60/75,139.80
  6. Step 6: Final answer
    x = 56,785.19

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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.