Home / 58,222.90-87,352.81-20,782.15

Finding the Fourth Proportional to 58,222.90, 87,352.81 and 20,782.15

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Solution

The fourth proportional to 58,222.90, 87,352.81 and 20,782.15 is: 31,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,222.90 : 87,352.81 = 20,782.15 : x
  2. Step 2: Convert to fraction form
    58,222.90/87,352.81 = 20,782.15/x
  3. Step 3: Cross multiply
    58,222.90x = 87,352.81 × 20,782.15
  4. Step 4: Simplify right side
    58,222.90x = 1,815,379,200.34
  5. Step 5: Solve for x
    x = 1,815,379,200.34/58,222.90
  6. Step 6: Final answer
    x = 31,179.81

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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.