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Finding the Fourth Proportional to 62,129.84, 93,193.20 and 20,012.81

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Solution

The fourth proportional to 62,129.84, 93,193.20 and 20,012.81 is: 30,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,129.84 : 93,193.20 = 20,012.81 : x
  2. Step 2: Convert to fraction form
    62,129.84/93,193.20 = 20,012.81/x
  3. Step 3: Cross multiply
    62,129.84x = 93,193.20 × 20,012.81
  4. Step 4: Simplify right side
    62,129.84x = 1,865,057,338.93
  5. Step 5: Solve for x
    x = 1,865,057,338.93/62,129.84
  6. Step 6: Final answer
    x = 30,018.71

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1.5x scale

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.