Home / 30,050.68-45,078.59-7,864.04

Finding the Fourth Proportional to 30,050.68, 45,078.59 and 7,864.04

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Solution

The fourth proportional to 30,050.68, 45,078.59 and 7,864.04 is: 11,796.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,050.68 : 45,078.59 = 7,864.04 : x
  2. Step 2: Convert to fraction form
    30,050.68/45,078.59 = 7,864.04/x
  3. Step 3: Cross multiply
    30,050.68x = 45,078.59 × 7,864.04
  4. Step 4: Simplify right side
    30,050.68x = 354,499,834.90
  5. Step 5: Solve for x
    x = 354,499,834.90/30,050.68
  6. Step 6: Final answer
    x = 11,796.73

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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.