Home / 84,622.77-116,642.39-57,389.85

Finding the Fourth Proportional to 84,622.77, 116,642.39 and 57,389.85

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Solution

The fourth proportional to 84,622.77, 116,642.39 and 57,389.85 is: 79,105.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,622.77 : 116,642.39 = 57,389.85 : x
  2. Step 2: Convert to fraction form
    84,622.77/116,642.39 = 57,389.85/x
  3. Step 3: Cross multiply
    84,622.77x = 116,642.39 × 57,389.85
  4. Step 4: Simplify right side
    84,622.77x = 6,694,088,978.79
  5. Step 5: Solve for x
    x = 6,694,088,978.79/84,622.77
  6. Step 6: Final answer
    x = 79,105.06

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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.