Home / 64,872.97-89,391.80-47,850.23

Finding the Fourth Proportional to 64,872.97, 89,391.80 and 47,850.23

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Solution

The fourth proportional to 64,872.97, 89,391.80 and 47,850.23 is: 65,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,872.97 : 89,391.80 = 47,850.23 : x
  2. Step 2: Convert to fraction form
    64,872.97/89,391.80 = 47,850.23/x
  3. Step 3: Cross multiply
    64,872.97x = 89,391.80 × 47,850.23
  4. Step 4: Simplify right side
    64,872.97x = 4,277,418,533.22
  5. Step 5: Solve for x
    x = 4,277,418,533.22/64,872.97
  6. Step 6: Final answer
    x = 65,935.30

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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.