Home / 81,084.12-111,896.04-45,274.11

Finding the Fourth Proportional to 81,084.12, 111,896.04 and 45,274.11

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Solution

The fourth proportional to 81,084.12, 111,896.04 and 45,274.11 is: 62,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,084.12 : 111,896.04 = 45,274.11 : x
  2. Step 2: Convert to fraction form
    81,084.12/111,896.04 = 45,274.11/x
  3. Step 3: Cross multiply
    81,084.12x = 111,896.04 × 45,274.11
  4. Step 4: Simplify right side
    81,084.12x = 5,065,993,623.52
  5. Step 5: Solve for x
    x = 5,065,993,623.52/81,084.12
  6. Step 6: Final answer
    x = 62,478.25

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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.