Home / 89,665.34-123,822.15-56,189.66

Finding the Fourth Proportional to 89,665.34, 123,822.15 and 56,189.66

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Solution

The fourth proportional to 89,665.34, 123,822.15 and 56,189.66 is: 77,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,665.34 : 123,822.15 = 56,189.66 : x
  2. Step 2: Convert to fraction form
    89,665.34/123,822.15 = 56,189.66/x
  3. Step 3: Cross multiply
    89,665.34x = 123,822.15 × 56,189.66
  4. Step 4: Simplify right side
    89,665.34x = 6,957,524,508.97
  5. Step 5: Solve for x
    x = 6,957,524,508.97/89,665.34
  6. Step 6: Final answer
    x = 77,594.36

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1.5x scale

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.