Home / 89,816.05-123,954.47-51,580.63

Finding the Fourth Proportional to 89,816.05, 123,954.47 and 51,580.63

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Solution

The fourth proportional to 89,816.05, 123,954.47 and 51,580.63 is: 71,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,816.05 : 123,954.47 = 51,580.63 : x
  2. Step 2: Convert to fraction form
    89,816.05/123,954.47 = 51,580.63/x
  3. Step 3: Cross multiply
    89,816.05x = 123,954.47 × 51,580.63
  4. Step 4: Simplify right side
    89,816.05x = 6,393,649,653.92
  5. Step 5: Solve for x
    x = 6,393,649,653.92/89,816.05
  6. Step 6: Final answer
    x = 71,186.05

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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.