Home / 45,812.72-68,671.10-19,173.96

Finding the Fourth Proportional to 45,812.72, 68,671.10 and 19,173.96

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Solution

The fourth proportional to 45,812.72, 68,671.10 and 19,173.96 is: 28,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,812.72 : 68,671.10 = 19,173.96 : x
  2. Step 2: Convert to fraction form
    45,812.72/68,671.10 = 19,173.96/x
  3. Step 3: Cross multiply
    45,812.72x = 68,671.10 × 19,173.96
  4. Step 4: Simplify right side
    45,812.72x = 1,316,696,828.69
  5. Step 5: Solve for x
    x = 1,316,696,828.69/45,812.72
  6. Step 6: Final answer
    x = 28,740.86

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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.