Home / 89,138.37-123,011.90-48,851.25

Finding the Fourth Proportional to 89,138.37, 123,011.90 and 48,851.25

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Solution

The fourth proportional to 89,138.37, 123,011.90 and 48,851.25 is: 67,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,138.37 : 123,011.90 = 48,851.25 : x
  2. Step 2: Convert to fraction form
    89,138.37/123,011.90 = 48,851.25/x
  3. Step 3: Cross multiply
    89,138.37x = 123,011.90 × 48,851.25
  4. Step 4: Simplify right side
    89,138.37x = 6,009,285,249.46
  5. Step 5: Solve for x
    x = 6,009,285,249.46/89,138.37
  6. Step 6: Final answer
    x = 67,415.24

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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.