Home / 57,721.41-86,595.11-20,284.07

Finding the Fourth Proportional to 57,721.41, 86,595.11 and 20,284.07

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Solution

The fourth proportional to 57,721.41, 86,595.11 and 20,284.07 is: 30,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,721.41 : 86,595.11 = 20,284.07 : x
  2. Step 2: Convert to fraction form
    57,721.41/86,595.11 = 20,284.07/x
  3. Step 3: Cross multiply
    57,721.41x = 86,595.11 × 20,284.07
  4. Step 4: Simplify right side
    57,721.41x = 1,756,500,738.50
  5. Step 5: Solve for x
    x = 1,756,500,738.50/57,721.41
  6. Step 6: Final answer
    x = 30,430.66

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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.