Home / 66,909.09-100,380.51-47,226.09

Finding the Fourth Proportional to 66,909.09, 100,380.51 and 47,226.09

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Solution

The fourth proportional to 66,909.09, 100,380.51 and 47,226.09 is: 70,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.09 : 100,380.51 = 47,226.09 : x
  2. Step 2: Convert to fraction form
    66,909.09/100,380.51 = 47,226.09/x
  3. Step 3: Cross multiply
    66,909.09x = 100,380.51 × 47,226.09
  4. Step 4: Simplify right side
    66,909.09x = 4,740,578,999.51
  5. Step 5: Solve for x
    x = 4,740,578,999.51/66,909.09
  6. Step 6: Final answer
    x = 70,851.05

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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.