Home / 47,405.46-71,108.28-12,345.06

Finding the Fourth Proportional to 47,405.46, 71,108.28 and 12,345.06

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Solution

The fourth proportional to 47,405.46, 71,108.28 and 12,345.06 is: 18,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,405.46 : 71,108.28 = 12,345.06 : x
  2. Step 2: Convert to fraction form
    47,405.46/71,108.28 = 12,345.06/x
  3. Step 3: Cross multiply
    47,405.46x = 71,108.28 × 12,345.06
  4. Step 4: Simplify right side
    47,405.46x = 877,835,983.10
  5. Step 5: Solve for x
    x = 877,835,983.10/47,405.46
  6. Step 6: Final answer
    x = 18,517.61

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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.