Home / 99,571.36-137,407.21-54,251.23

Finding the Fourth Proportional to 99,571.36, 137,407.21 and 54,251.23

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Solution

The fourth proportional to 99,571.36, 137,407.21 and 54,251.23 is: 74,866.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,571.36 : 137,407.21 = 54,251.23 : x
  2. Step 2: Convert to fraction form
    99,571.36/137,407.21 = 54,251.23/x
  3. Step 3: Cross multiply
    99,571.36x = 137,407.21 × 54,251.23
  4. Step 4: Simplify right side
    99,571.36x = 7,454,510,153.37
  5. Step 5: Solve for x
    x = 7,454,510,153.37/99,571.36
  6. Step 6: Final answer
    x = 74,866.01

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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.