Home / 52,104.31-78,156.26-12,661.54

Finding the Fourth Proportional to 52,104.31, 78,156.26 and 12,661.54

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Solution

The fourth proportional to 52,104.31, 78,156.26 and 12,661.54 is: 18,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,104.31 : 78,156.26 = 12,661.54 : x
  2. Step 2: Convert to fraction form
    52,104.31/78,156.26 = 12,661.54/x
  3. Step 3: Cross multiply
    52,104.31x = 78,156.26 × 12,661.54
  4. Step 4: Simplify right side
    52,104.31x = 989,578,643.89
  5. Step 5: Solve for x
    x = 989,578,643.89/52,104.31
  6. Step 6: Final answer
    x = 18,992.26

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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.