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Finding the Fourth Proportional to 84,135.92, 116,109.76 and 45,896.12

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Solution

The fourth proportional to 84,135.92, 116,109.76 and 45,896.12 is: 63,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,135.92 : 116,109.76 = 45,896.12 : x
  2. Step 2: Convert to fraction form
    84,135.92/116,109.76 = 45,896.12/x
  3. Step 3: Cross multiply
    84,135.92x = 116,109.76 × 45,896.12
  4. Step 4: Simplify right side
    84,135.92x = 5,328,987,478.13
  5. Step 5: Solve for x
    x = 5,328,987,478.13/84,135.92
  6. Step 6: Final answer
    x = 63,337.84

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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.