Home / 89,351.38-123,314.75-51,114.45

Finding the Fourth Proportional to 89,351.38, 123,314.75 and 51,114.45

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Solution

The fourth proportional to 89,351.38, 123,314.75 and 51,114.45 is: 70,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,351.38 : 123,314.75 = 51,114.45 : x
  2. Step 2: Convert to fraction form
    89,351.38/123,314.75 = 51,114.45/x
  3. Step 3: Cross multiply
    89,351.38x = 123,314.75 × 51,114.45
  4. Step 4: Simplify right side
    89,351.38x = 6,303,165,623.14
  5. Step 5: Solve for x
    x = 6,303,165,623.14/89,351.38
  6. Step 6: Final answer
    x = 70,543.57

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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.