Home / 94,731.70-142,119.78-28,172.38

Finding the Fourth Proportional to 94,731.70, 142,119.78 and 28,172.38

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Solution

The fourth proportional to 94,731.70, 142,119.78 and 28,172.38 is: 42,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,731.70 : 142,119.78 = 28,172.38 : x
  2. Step 2: Convert to fraction form
    94,731.70/142,119.78 = 28,172.38/x
  3. Step 3: Cross multiply
    94,731.70x = 142,119.78 × 28,172.38
  4. Step 4: Simplify right side
    94,731.70x = 4,003,852,447.68
  5. Step 5: Solve for x
    x = 4,003,852,447.68/94,731.70
  6. Step 6: Final answer
    x = 42,265.18

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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.