Home / 53,065.89-79,591.41-19,781.64

Finding the Fourth Proportional to 53,065.89, 79,591.41 and 19,781.64

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Solution

The fourth proportional to 53,065.89, 79,591.41 and 19,781.64 is: 29,669.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,065.89 : 79,591.41 = 19,781.64 : x
  2. Step 2: Convert to fraction form
    53,065.89/79,591.41 = 19,781.64/x
  3. Step 3: Cross multiply
    53,065.89x = 79,591.41 × 19,781.64
  4. Step 4: Simplify right side
    53,065.89x = 1,574,448,619.71
  5. Step 5: Solve for x
    x = 1,574,448,619.71/53,065.89
  6. Step 6: Final answer
    x = 29,669.69

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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.