Home / 66,426.96-99,650.40-19,673.76

Finding the Fourth Proportional to 66,426.96, 99,650.40 and 19,673.76

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Solution

The fourth proportional to 66,426.96, 99,650.40 and 19,673.76 is: 29,513.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,426.96 : 99,650.40 = 19,673.76 : x
  2. Step 2: Convert to fraction form
    66,426.96/99,650.40 = 19,673.76/x
  3. Step 3: Cross multiply
    66,426.96x = 99,650.40 × 19,673.76
  4. Step 4: Simplify right side
    66,426.96x = 1,960,498,053.50
  5. Step 5: Solve for x
    x = 1,960,498,053.50/66,426.96
  6. Step 6: Final answer
    x = 29,513.59

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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.