Home / 76,732.16-105,890.08-43,198.72

Finding the Fourth Proportional to 76,732.16, 105,890.08 and 43,198.72

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Solution

The fourth proportional to 76,732.16, 105,890.08 and 43,198.72 is: 59,614.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,732.16 : 105,890.08 = 43,198.72 : x
  2. Step 2: Convert to fraction form
    76,732.16/105,890.08 = 43,198.72/x
  3. Step 3: Cross multiply
    76,732.16x = 105,890.08 × 43,198.72
  4. Step 4: Simplify right side
    76,732.16x = 4,574,315,916.70
  5. Step 5: Solve for x
    x = 4,574,315,916.70/76,732.16
  6. Step 6: Final answer
    x = 59,614.06

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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.