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Finding the Fourth Proportional to 75,062.48, 103,467.12 and 59,121.68

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Solution

The fourth proportional to 75,062.48, 103,467.12 and 59,121.68 is: 81,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,062.48 : 103,467.12 = 59,121.68 : x
  2. Step 2: Convert to fraction form
    75,062.48/103,467.12 = 59,121.68/x
  3. Step 3: Cross multiply
    75,062.48x = 103,467.12 × 59,121.68
  4. Step 4: Simplify right side
    75,062.48x = 6,117,149,959.16
  5. Step 5: Solve for x
    x = 6,117,149,959.16/75,062.48
  6. Step 6: Final answer
    x = 81,494.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.