Home / 45,396.61-68,095.21-15,815

Finding the Fourth Proportional to 45,396.61, 68,095.21 and 15,815

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Solution

The fourth proportional to 45,396.61, 68,095.21 and 15,815 is: 23,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,396.61 : 68,095.21 = 15,815 : x
  2. Step 2: Convert to fraction form
    45,396.61/68,095.21 = 15,815/x
  3. Step 3: Cross multiply
    45,396.61x = 68,095.21 × 15,815
  4. Step 4: Simplify right side
    45,396.61x = 1,076,925,746.15
  5. Step 5: Solve for x
    x = 1,076,925,746.15/45,396.61
  6. Step 6: Final answer
    x = 23,722.61

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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.