Home / 52,339.33-78,463.04-20,771.67

Finding the Fourth Proportional to 52,339.33, 78,463.04 and 20,771.67

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Solution

The fourth proportional to 52,339.33, 78,463.04 and 20,771.67 is: 31,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,339.33 : 78,463.04 = 20,771.67 : x
  2. Step 2: Convert to fraction form
    52,339.33/78,463.04 = 20,771.67/x
  3. Step 3: Cross multiply
    52,339.33x = 78,463.04 × 20,771.67
  4. Step 4: Simplify right side
    52,339.33x = 1,629,808,374.08
  5. Step 5: Solve for x
    x = 1,629,808,374.08/52,339.33
  6. Step 6: Final answer
    x = 31,139.27

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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.