Home / 89,688.05-123,764.93-49,400.94

Finding the Fourth Proportional to 89,688.05, 123,764.93 and 49,400.94

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Solution

The fourth proportional to 89,688.05, 123,764.93 and 49,400.94 is: 68,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688.05 : 123,764.93 = 49,400.94 : x
  2. Step 2: Convert to fraction form
    89,688.05/123,764.93 = 49,400.94/x
  3. Step 3: Cross multiply
    89,688.05x = 123,764.93 × 49,400.94
  4. Step 4: Simplify right side
    89,688.05x = 6,114,103,881.03
  5. Step 5: Solve for x
    x = 6,114,103,881.03/89,688.05
  6. Step 6: Final answer
    x = 68,170.78

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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.