Home / 81,190.72-112,038.68-44,890.07

Finding the Fourth Proportional to 81,190.72, 112,038.68 and 44,890.07

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Solution

The fourth proportional to 81,190.72, 112,038.68 and 44,890.07 is: 61,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,190.72 : 112,038.68 = 44,890.07 : x
  2. Step 2: Convert to fraction form
    81,190.72/112,038.68 = 44,890.07/x
  3. Step 3: Cross multiply
    81,190.72x = 112,038.68 × 44,890.07
  4. Step 4: Simplify right side
    81,190.72x = 5,029,423,487.43
  5. Step 5: Solve for x
    x = 5,029,423,487.43/81,190.72
  6. Step 6: Final answer
    x = 61,945.79

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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.