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Finding the Fourth Proportional to 81,596.64, 112,603.06 and 45,786.57

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Solution

The fourth proportional to 81,596.64, 112,603.06 and 45,786.57 is: 63,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,596.64 : 112,603.06 = 45,786.57 : x
  2. Step 2: Convert to fraction form
    81,596.64/112,603.06 = 45,786.57/x
  3. Step 3: Cross multiply
    81,596.64x = 112,603.06 × 45,786.57
  4. Step 4: Simplify right side
    81,596.64x = 5,155,707,888.90
  5. Step 5: Solve for x
    x = 5,155,707,888.90/81,596.64
  6. Step 6: Final answer
    x = 63,185.30

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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.