Home / 81,913.92-122,918.62-34,526.10

Finding the Fourth Proportional to 81,913.92, 122,918.62 and 34,526.10

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Solution

The fourth proportional to 81,913.92, 122,918.62 and 34,526.10 is: 51,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.92 : 122,918.62 = 34,526.10 : x
  2. Step 2: Convert to fraction form
    81,913.92/122,918.62 = 34,526.10/x
  3. Step 3: Cross multiply
    81,913.92x = 122,918.62 × 34,526.10
  4. Step 4: Simplify right side
    81,913.92x = 4,243,900,565.98
  5. Step 5: Solve for x
    x = 4,243,900,565.98/81,913.92
  6. Step 6: Final answer
    x = 51,809.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.