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Finding the Fourth Proportional to 81,163.77, 112,017.13 and 46,707.80

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Solution

The fourth proportional to 81,163.77, 112,017.13 and 46,707.80 is: 64,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,163.77 : 112,017.13 = 46,707.80 : x
  2. Step 2: Convert to fraction form
    81,163.77/112,017.13 = 46,707.80/x
  3. Step 3: Cross multiply
    81,163.77x = 112,017.13 × 46,707.80
  4. Step 4: Simplify right side
    81,163.77x = 5,232,073,704.61
  5. Step 5: Solve for x
    x = 5,232,073,704.61/81,163.77
  6. Step 6: Final answer
    x = 64,463.17

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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.