Home / 57,780.74-86,676.93-15,661.51

Finding the Fourth Proportional to 57,780.74, 86,676.93 and 15,661.51

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Solution

The fourth proportional to 57,780.74, 86,676.93 and 15,661.51 is: 23,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780.74 : 86,676.93 = 15,661.51 : x
  2. Step 2: Convert to fraction form
    57,780.74/86,676.93 = 15,661.51/x
  3. Step 3: Cross multiply
    57,780.74x = 86,676.93 × 15,661.51
  4. Step 4: Simplify right side
    57,780.74x = 1,357,491,389.27
  5. Step 5: Solve for x
    x = 1,357,491,389.27/57,780.74
  6. Step 6: Final answer
    x = 23,493.84

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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.