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Finding the Fourth Proportional to 81,162.77, 112,015.75 and 46,706.80

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Solution

The fourth proportional to 81,162.77, 112,015.75 and 46,706.80 is: 64,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,162.77 : 112,015.75 = 46,706.80 : x
  2. Step 2: Convert to fraction form
    81,162.77/112,015.75 = 46,706.80/x
  3. Step 3: Cross multiply
    81,162.77x = 112,015.75 × 46,706.80
  4. Step 4: Simplify right side
    81,162.77x = 5,231,896,672.02
  5. Step 5: Solve for x
    x = 5,231,896,672.02/81,162.77
  6. Step 6: Final answer
    x = 64,461.78

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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.