Home / 53,660.13-80,464.28-31,480.71

Finding the Fourth Proportional to 53,660.13, 80,464.28 and 31,480.71

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Solution

The fourth proportional to 53,660.13, 80,464.28 and 31,480.71 is: 47,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,660.13 : 80,464.28 = 31,480.71 : x
  2. Step 2: Convert to fraction form
    53,660.13/80,464.28 = 31,480.71/x
  3. Step 3: Cross multiply
    53,660.13x = 80,464.28 × 31,480.71
  4. Step 4: Simplify right side
    53,660.13x = 2,533,072,506.64
  5. Step 5: Solve for x
    x = 2,533,072,506.64/53,660.13
  6. Step 6: Final answer
    x = 47,205.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.