Home / 76,383.10-105,460.07-58,446.06

Finding the Fourth Proportional to 76,383.10, 105,460.07 and 58,446.06

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Solution

The fourth proportional to 76,383.10, 105,460.07 and 58,446.06 is: 80,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,383.10 : 105,460.07 = 58,446.06 : x
  2. Step 2: Convert to fraction form
    76,383.10/105,460.07 = 58,446.06/x
  3. Step 3: Cross multiply
    76,383.10x = 105,460.07 × 58,446.06
  4. Step 4: Simplify right side
    76,383.10x = 6,163,725,578.82
  5. Step 5: Solve for x
    x = 6,163,725,578.82/76,383.10
  6. Step 6: Final answer
    x = 80,694.89

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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.