Home / 81,586.91-112,591.68-45,779.51

Finding the Fourth Proportional to 81,586.91, 112,591.68 and 45,779.51

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Solution

The fourth proportional to 81,586.91, 112,591.68 and 45,779.51 is: 63,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.91 : 112,591.68 = 45,779.51 : x
  2. Step 2: Convert to fraction form
    81,586.91/112,591.68 = 45,779.51/x
  3. Step 3: Cross multiply
    81,586.91x = 112,591.68 × 45,779.51
  4. Step 4: Simplify right side
    81,586.91x = 5,154,391,940.48
  5. Step 5: Solve for x
    x = 5,154,391,940.48/81,586.91
  6. Step 6: Final answer
    x = 63,176.70

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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.