Home / 89,138.94-123,012.68-48,851.81

Finding the Fourth Proportional to 89,138.94, 123,012.68 and 48,851.81

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Solution

The fourth proportional to 89,138.94, 123,012.68 and 48,851.81 is: 67,416.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,138.94 : 123,012.68 = 48,851.81 : x
  2. Step 2: Convert to fraction form
    89,138.94/123,012.68 = 48,851.81/x
  3. Step 3: Cross multiply
    89,138.94x = 123,012.68 × 48,851.81
  4. Step 4: Simplify right side
    89,138.94x = 6,009,392,364.87
  5. Step 5: Solve for x
    x = 6,009,392,364.87/89,138.94
  6. Step 6: Final answer
    x = 67,416.02

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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.