Home / 89,666.02-123,734.79-49,381.48

Finding the Fourth Proportional to 89,666.02, 123,734.79 and 49,381.48

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Solution

The fourth proportional to 89,666.02, 123,734.79 and 49,381.48 is: 68,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,666.02 : 123,734.79 = 49,381.48 : x
  2. Step 2: Convert to fraction form
    89,666.02/123,734.79 = 49,381.48/x
  3. Step 3: Cross multiply
    89,666.02x = 123,734.79 × 49,381.48
  4. Step 4: Simplify right side
    89,666.02x = 6,110,207,212.36
  5. Step 5: Solve for x
    x = 6,110,207,212.36/89,666.02
  6. Step 6: Final answer
    x = 68,144.07

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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.