Home / 36,438.45-54,621.22-31,420.50

Finding the Fourth Proportional to 36,438.45, 54,621.22 and 31,420.50

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Solution

The fourth proportional to 36,438.45, 54,621.22 and 31,420.50 is: 47,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,438.45 : 54,621.22 = 31,420.50 : x
  2. Step 2: Convert to fraction form
    36,438.45/54,621.22 = 31,420.50/x
  3. Step 3: Cross multiply
    36,438.45x = 54,621.22 × 31,420.50
  4. Step 4: Simplify right side
    36,438.45x = 1,716,226,043.01
  5. Step 5: Solve for x
    x = 1,716,226,043.01/36,438.45
  6. Step 6: Final answer
    x = 47,099.32

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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.