Home / 82,141.84-113,268.21-64,883.87

Finding the Fourth Proportional to 82,141.84, 113,268.21 and 64,883.87

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Solution

The fourth proportional to 82,141.84, 113,268.21 and 64,883.87 is: 89,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,141.84 : 113,268.21 = 64,883.87 : x
  2. Step 2: Convert to fraction form
    82,141.84/113,268.21 = 64,883.87/x
  3. Step 3: Cross multiply
    82,141.84x = 113,268.21 × 64,883.87
  4. Step 4: Simplify right side
    82,141.84x = 7,349,279,812.77
  5. Step 5: Solve for x
    x = 7,349,279,812.77/82,141.84
  6. Step 6: Final answer
    x = 89,470.61

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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.