Home / 81,295.14-112,187.84-45,485.75

Finding the Fourth Proportional to 81,295.14, 112,187.84 and 45,485.75

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Solution

The fourth proportional to 81,295.14, 112,187.84 and 45,485.75 is: 62,770.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,295.14 : 112,187.84 = 45,485.75 : x
  2. Step 2: Convert to fraction form
    81,295.14/112,187.84 = 45,485.75/x
  3. Step 3: Cross multiply
    81,295.14x = 112,187.84 × 45,485.75
  4. Step 4: Simplify right side
    81,295.14x = 5,102,948,096.32
  5. Step 5: Solve for x
    x = 5,102,948,096.32/81,295.14
  6. Step 6: Final answer
    x = 62,770.64

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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.