Home / 47,185.18-70,777.77-12,124.87

Finding the Fourth Proportional to 47,185.18, 70,777.77 and 12,124.87

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Solution

The fourth proportional to 47,185.18, 70,777.77 and 12,124.87 is: 18,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,185.18 : 70,777.77 = 12,124.87 : x
  2. Step 2: Convert to fraction form
    47,185.18/70,777.77 = 12,124.87/x
  3. Step 3: Cross multiply
    47,185.18x = 70,777.77 × 12,124.87
  4. Step 4: Simplify right side
    47,185.18x = 858,171,260.14
  5. Step 5: Solve for x
    x = 858,171,260.14/47,185.18
  6. Step 6: Final answer
    x = 18,187.31

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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.