Home / 89,688.30-123,775.49-49,402.07

Finding the Fourth Proportional to 89,688.30, 123,775.49 and 49,402.07

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Solution

The fourth proportional to 89,688.30, 123,775.49 and 49,402.07 is: 68,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688.30 : 123,775.49 = 49,402.07 : x
  2. Step 2: Convert to fraction form
    89,688.30/123,775.49 = 49,402.07/x
  3. Step 3: Cross multiply
    89,688.30x = 123,775.49 × 49,402.07
  4. Step 4: Simplify right side
    89,688.30x = 6,114,765,390.05
  5. Step 5: Solve for x
    x = 6,114,765,390.05/89,688.30
  6. Step 6: Final answer
    x = 68,177.96

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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.