Home / 82,199.04-113,434.72-57,063.12

Finding the Fourth Proportional to 82,199.04, 113,434.72 and 57,063.12

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Solution

The fourth proportional to 82,199.04, 113,434.72 and 57,063.12 is: 78,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,199.04 : 113,434.72 = 57,063.12 : x
  2. Step 2: Convert to fraction form
    82,199.04/113,434.72 = 57,063.12/x
  3. Step 3: Cross multiply
    82,199.04x = 113,434.72 × 57,063.12
  4. Step 4: Simplify right side
    82,199.04x = 6,472,939,039.53
  5. Step 5: Solve for x
    x = 6,472,939,039.53/82,199.04
  6. Step 6: Final answer
    x = 78,747.14

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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.