Home / 81,504.12-112,488.30-45,708.60

Finding the Fourth Proportional to 81,504.12, 112,488.30 and 45,708.60

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Solution

The fourth proportional to 81,504.12, 112,488.30 and 45,708.60 is: 63,084.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,504.12 : 112,488.30 = 45,708.60 : x
  2. Step 2: Convert to fraction form
    81,504.12/112,488.30 = 45,708.60/x
  3. Step 3: Cross multiply
    81,504.12x = 112,488.30 × 45,708.60
  4. Step 4: Simplify right side
    81,504.12x = 5,141,682,709.38
  5. Step 5: Solve for x
    x = 5,141,682,709.38/81,504.12
  6. Step 6: Final answer
    x = 63,084.94

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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.