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Finding the Fourth Proportional to 81,574.92, 112,571.67 and 45,274.26

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Solution

The fourth proportional to 81,574.92, 112,571.67 and 45,274.26 is: 62,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,574.92 : 112,571.67 = 45,274.26 : x
  2. Step 2: Convert to fraction form
    81,574.92/112,571.67 = 45,274.26/x
  3. Step 3: Cross multiply
    81,574.92x = 112,571.67 × 45,274.26
  4. Step 4: Simplify right side
    81,574.92x = 5,096,598,493.36
  5. Step 5: Solve for x
    x = 5,096,598,493.36/81,574.92
  6. Step 6: Final answer
    x = 62,477.52

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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.