Home / 89,285.21-123,216.29-49,001.61

Finding the Fourth Proportional to 89,285.21, 123,216.29 and 49,001.61

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Solution

The fourth proportional to 89,285.21, 123,216.29 and 49,001.61 is: 67,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,285.21 : 123,216.29 = 49,001.61 : x
  2. Step 2: Convert to fraction form
    89,285.21/123,216.29 = 49,001.61/x
  3. Step 3: Cross multiply
    89,285.21x = 123,216.29 × 49,001.61
  4. Step 4: Simplify right side
    89,285.21x = 6,037,796,588.23
  5. Step 5: Solve for x
    x = 6,037,796,588.23/89,285.21
  6. Step 6: Final answer
    x = 67,623.70

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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.