Home / 82,285.65-113,599.39-51,690.66

Finding the Fourth Proportional to 82,285.65, 113,599.39 and 51,690.66

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Solution

The fourth proportional to 82,285.65, 113,599.39 and 51,690.66 is: 71,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,285.65 : 113,599.39 = 51,690.66 : x
  2. Step 2: Convert to fraction form
    82,285.65/113,599.39 = 51,690.66/x
  3. Step 3: Cross multiply
    82,285.65x = 113,599.39 × 51,690.66
  4. Step 4: Simplify right side
    82,285.65x = 5,872,026,841.01
  5. Step 5: Solve for x
    x = 5,872,026,841.01/82,285.65
  6. Step 6: Final answer
    x = 71,361.50

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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.