Home / 52,095.34-78,161.74-20,487.89

Finding the Fourth Proportional to 52,095.34, 78,161.74 and 20,487.89

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Solution

The fourth proportional to 52,095.34, 78,161.74 and 20,487.89 is: 30,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,095.34 : 78,161.74 = 20,487.89 : x
  2. Step 2: Convert to fraction form
    52,095.34/78,161.74 = 20,487.89/x
  3. Step 3: Cross multiply
    52,095.34x = 78,161.74 × 20,487.89
  4. Step 4: Simplify right side
    52,095.34x = 1,601,369,131.33
  5. Step 5: Solve for x
    x = 1,601,369,131.33/52,095.34
  6. Step 6: Final answer
    x = 30,739.20

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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.