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Finding the Fourth Proportional to 90,418.86, 124,762.86 and 60,249.24

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Solution

The fourth proportional to 90,418.86, 124,762.86 and 60,249.24 is: 83,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,418.86 : 124,762.86 = 60,249.24 : x
  2. Step 2: Convert to fraction form
    90,418.86/124,762.86 = 60,249.24/x
  3. Step 3: Cross multiply
    90,418.86x = 124,762.86 × 60,249.24
  4. Step 4: Simplify right side
    90,418.86x = 7,516,867,495.23
  5. Step 5: Solve for x
    x = 7,516,867,495.23/90,418.86
  6. Step 6: Final answer
    x = 83,133.85

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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.