Home / 45,142.35-67,817.34-31,845.93

Finding the Fourth Proportional to 45,142.35, 67,817.34 and 31,845.93

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Solution

The fourth proportional to 45,142.35, 67,817.34 and 31,845.93 is: 47,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,142.35 : 67,817.34 = 31,845.93 : x
  2. Step 2: Convert to fraction form
    45,142.35/67,817.34 = 31,845.93/x
  3. Step 3: Cross multiply
    45,142.35x = 67,817.34 × 31,845.93
  4. Step 4: Simplify right side
    45,142.35x = 2,159,706,262.43
  5. Step 5: Solve for x
    x = 2,159,706,262.43/45,142.35
  6. Step 6: Final answer
    x = 47,842.13

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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.