Home / 52,092.86-78,138.21-12,650.18

Finding the Fourth Proportional to 52,092.86, 78,138.21 and 12,650.18

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Solution

The fourth proportional to 52,092.86, 78,138.21 and 12,650.18 is: 18,975.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,092.86 : 78,138.21 = 12,650.18 : x
  2. Step 2: Convert to fraction form
    52,092.86/78,138.21 = 12,650.18/x
  3. Step 3: Cross multiply
    52,092.86x = 78,138.21 × 12,650.18
  4. Step 4: Simplify right side
    52,092.86x = 988,462,421.38
  5. Step 5: Solve for x
    x = 988,462,421.38/52,092.86
  6. Step 6: Final answer
    x = 18,975.01

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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.