Home / 56,817.45-85,129.11-40,145.22

Finding the Fourth Proportional to 56,817.45, 85,129.11 and 40,145.22

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Solution

The fourth proportional to 56,817.45, 85,129.11 and 40,145.22 is: 60,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,817.45 : 85,129.11 = 40,145.22 : x
  2. Step 2: Convert to fraction form
    56,817.45/85,129.11 = 40,145.22/x
  3. Step 3: Cross multiply
    56,817.45x = 85,129.11 × 40,145.22
  4. Step 4: Simplify right side
    56,817.45x = 3,417,526,849.35
  5. Step 5: Solve for x
    x = 3,417,526,849.35/56,817.45
  6. Step 6: Final answer
    x = 60,149.25

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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.