Home / 70,029.32-105,013.00-20,097.83

Finding the Fourth Proportional to 70,029.32, 105,013.00 and 20,097.83

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Solution

The fourth proportional to 70,029.32, 105,013.00 and 20,097.83 is: 30,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,029.32 : 105,013.00 = 20,097.83 : x
  2. Step 2: Convert to fraction form
    70,029.32/105,013.00 = 20,097.83/x
  3. Step 3: Cross multiply
    70,029.32x = 105,013.00 × 20,097.83
  4. Step 4: Simplify right side
    70,029.32x = 2,110,533,321.30
  5. Step 5: Solve for x
    x = 2,110,533,321.30/70,029.32
  6. Step 6: Final answer
    x = 30,137.85

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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.