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Finding the Fourth Proportional to 81,164.44, 112,004.77 and 45,354.74

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Solution

The fourth proportional to 81,164.44, 112,004.77 and 45,354.74 is: 62,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,164.44 : 112,004.77 = 45,354.74 : x
  2. Step 2: Convert to fraction form
    81,164.44/112,004.77 = 45,354.74/x
  3. Step 3: Cross multiply
    81,164.44x = 112,004.77 × 45,354.74
  4. Step 4: Simplify right side
    81,164.44x = 5,079,947,222.11
  5. Step 5: Solve for x
    x = 5,079,947,222.11/81,164.44
  6. Step 6: Final answer
    x = 62,588.34

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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.