Home / 66,953.02-100,446.21-20,205.88

Finding the Fourth Proportional to 66,953.02, 100,446.21 and 20,205.88

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Solution

The fourth proportional to 66,953.02, 100,446.21 and 20,205.88 is: 30,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,953.02 : 100,446.21 = 20,205.88 : x
  2. Step 2: Convert to fraction form
    66,953.02/100,446.21 = 20,205.88/x
  3. Step 3: Cross multiply
    66,953.02x = 100,446.21 × 20,205.88
  4. Step 4: Simplify right side
    66,953.02x = 2,029,604,065.71
  5. Step 5: Solve for x
    x = 2,029,604,065.71/66,953.02
  6. Step 6: Final answer
    x = 30,313.85

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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.