Home / 75,296.40-103,979.31-48,485.59

Finding the Fourth Proportional to 75,296.40, 103,979.31 and 48,485.59

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Solution

The fourth proportional to 75,296.40, 103,979.31 and 48,485.59 is: 66,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,296.40 : 103,979.31 = 48,485.59 : x
  2. Step 2: Convert to fraction form
    75,296.40/103,979.31 = 48,485.59/x
  3. Step 3: Cross multiply
    75,296.40x = 103,979.31 × 48,485.59
  4. Step 4: Simplify right side
    75,296.40x = 5,041,498,193.14
  5. Step 5: Solve for x
    x = 5,041,498,193.14/75,296.40
  6. Step 6: Final answer
    x = 66,955.37

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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.