Home / 89,135.79-123,005.43-48,848.70

Finding the Fourth Proportional to 89,135.79, 123,005.43 and 48,848.70

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Solution

The fourth proportional to 89,135.79, 123,005.43 and 48,848.70 is: 67,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,135.79 : 123,005.43 = 48,848.70 : x
  2. Step 2: Convert to fraction form
    89,135.79/123,005.43 = 48,848.70/x
  3. Step 3: Cross multiply
    89,135.79x = 123,005.43 × 48,848.70
  4. Step 4: Simplify right side
    89,135.79x = 6,008,655,348.44
  5. Step 5: Solve for x
    x = 6,008,655,348.44/89,135.79
  6. Step 6: Final answer
    x = 67,410.13

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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.