Home / 81,639.24-112,662.20-45,840.84

Finding the Fourth Proportional to 81,639.24, 112,662.20 and 45,840.84

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Solution

The fourth proportional to 81,639.24, 112,662.20 and 45,840.84 is: 63,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,639.24 : 112,662.20 = 45,840.84 : x
  2. Step 2: Convert to fraction form
    81,639.24/112,662.20 = 45,840.84/x
  3. Step 3: Cross multiply
    81,639.24x = 112,662.20 × 45,840.84
  4. Step 4: Simplify right side
    81,639.24x = 5,164,529,884.25
  5. Step 5: Solve for x
    x = 5,164,529,884.25/81,639.24
  6. Step 6: Final answer
    x = 63,260.39

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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.