Home / 57,623.20-86,523.90-31,379.20

Finding the Fourth Proportional to 57,623.20, 86,523.90 and 31,379.20

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Solution

The fourth proportional to 57,623.20, 86,523.90 and 31,379.20 is: 47,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,623.20 : 86,523.90 = 31,379.20 : x
  2. Step 2: Convert to fraction form
    57,623.20/86,523.90 = 31,379.20/x
  3. Step 3: Cross multiply
    57,623.20x = 86,523.90 × 31,379.20
  4. Step 4: Simplify right side
    57,623.20x = 2,715,050,762.88
  5. Step 5: Solve for x
    x = 2,715,050,762.88/57,623.20
  6. Step 6: Final answer
    x = 47,117.32

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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.