Home / 66,599.76-99,899.70-19,851.48

Finding the Fourth Proportional to 66,599.76, 99,899.70 and 19,851.48

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Solution

The fourth proportional to 66,599.76, 99,899.70 and 19,851.48 is: 29,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,599.76 : 99,899.70 = 19,851.48 : x
  2. Step 2: Convert to fraction form
    66,599.76/99,899.70 = 19,851.48/x
  3. Step 3: Cross multiply
    66,599.76x = 99,899.70 × 19,851.48
  4. Step 4: Simplify right side
    66,599.76x = 1,983,156,896.56
  5. Step 5: Solve for x
    x = 1,983,156,896.56/66,599.76
  6. Step 6: Final answer
    x = 29,777.24

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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.