Home / 62,941.78-94,412.70-20,821.86

Finding the Fourth Proportional to 62,941.78, 94,412.70 and 20,821.86

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Solution

The fourth proportional to 62,941.78, 94,412.70 and 20,821.86 is: 31,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,941.78 : 94,412.70 = 20,821.86 : x
  2. Step 2: Convert to fraction form
    62,941.78/94,412.70 = 20,821.86/x
  3. Step 3: Cross multiply
    62,941.78x = 94,412.70 × 20,821.86
  4. Step 4: Simplify right side
    62,941.78x = 1,965,847,963.06
  5. Step 5: Solve for x
    x = 1,965,847,963.06/62,941.78
  6. Step 6: Final answer
    x = 31,232.80

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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.