Home / 66,434.57-99,642.50-19,053.72

Finding the Fourth Proportional to 66,434.57, 99,642.50 and 19,053.72

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Solution

The fourth proportional to 66,434.57, 99,642.50 and 19,053.72 is: 28,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434.57 : 99,642.50 = 19,053.72 : x
  2. Step 2: Convert to fraction form
    66,434.57/99,642.50 = 19,053.72/x
  3. Step 3: Cross multiply
    66,434.57x = 99,642.50 × 19,053.72
  4. Step 4: Simplify right side
    66,434.57x = 1,898,560,295.10
  5. Step 5: Solve for x
    x = 1,898,560,295.10/66,434.57
  6. Step 6: Final answer
    x = 28,577.90

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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.