Home / 99,588.36-137,431.26-54,876.36

Finding the Fourth Proportional to 99,588.36, 137,431.26 and 54,876.36

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Solution

The fourth proportional to 99,588.36, 137,431.26 and 54,876.36 is: 75,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,588.36 : 137,431.26 = 54,876.36 : x
  2. Step 2: Convert to fraction form
    99,588.36/137,431.26 = 54,876.36/x
  3. Step 3: Cross multiply
    99,588.36x = 137,431.26 × 54,876.36
  4. Step 4: Simplify right side
    99,588.36x = 7,541,727,299.01
  5. Step 5: Solve for x
    x = 7,541,727,299.01/99,588.36
  6. Step 6: Final answer
    x = 75,729.00

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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.