Home / 82,012.62-113,174.51-49,750.93

Finding the Fourth Proportional to 82,012.62, 113,174.51 and 49,750.93

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Solution

The fourth proportional to 82,012.62, 113,174.51 and 49,750.93 is: 68,654.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,012.62 : 113,174.51 = 49,750.93 : x
  2. Step 2: Convert to fraction form
    82,012.62/113,174.51 = 49,750.93/x
  3. Step 3: Cross multiply
    82,012.62x = 113,174.51 × 49,750.93
  4. Step 4: Simplify right side
    82,012.62x = 5,630,537,124.79
  5. Step 5: Solve for x
    x = 5,630,537,124.79/82,012.62
  6. Step 6: Final answer
    x = 68,654.52

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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.