Home / 82,585.74-113,977.89-77,518.92

Finding the Fourth Proportional to 82,585.74, 113,977.89 and 77,518.92

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Solution

The fourth proportional to 82,585.74, 113,977.89 and 77,518.92 is: 106,985.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,585.74 : 113,977.89 = 77,518.92 : x
  2. Step 2: Convert to fraction form
    82,585.74/113,977.89 = 77,518.92/x
  3. Step 3: Cross multiply
    82,585.74x = 113,977.89 × 77,518.92
  4. Step 4: Simplify right side
    82,585.74x = 8,835,442,936.68
  5. Step 5: Solve for x
    x = 8,835,442,936.68/82,585.74
  6. Step 6: Final answer
    x = 106,985.09

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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.