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Finding the Fourth Proportional to 84,241.78, 116,300.36 and 57,423.68

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Solution

The fourth proportional to 84,241.78, 116,300.36 and 57,423.68 is: 79,276.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,241.78 : 116,300.36 = 57,423.68 : x
  2. Step 2: Convert to fraction form
    84,241.78/116,300.36 = 57,423.68/x
  3. Step 3: Cross multiply
    84,241.78x = 116,300.36 × 57,423.68
  4. Step 4: Simplify right side
    84,241.78x = 6,678,394,369.41
  5. Step 5: Solve for x
    x = 6,678,394,369.41/84,241.78
  6. Step 6: Final answer
    x = 79,276.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.