Home / 82,208.04-113,447.16-57,072.12

Finding the Fourth Proportional to 82,208.04, 113,447.16 and 57,072.12

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Solution

The fourth proportional to 82,208.04, 113,447.16 and 57,072.12 is: 78,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,208.04 : 113,447.16 = 57,072.12 : x
  2. Step 2: Convert to fraction form
    82,208.04/113,447.16 = 57,072.12/x
  3. Step 3: Cross multiply
    82,208.04x = 113,447.16 × 57,072.12
  4. Step 4: Simplify right side
    82,208.04x = 6,474,669,929.18
  5. Step 5: Solve for x
    x = 6,474,669,929.18/82,208.04
  6. Step 6: Final answer
    x = 78,759.57

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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.