Home / 66,587.31-99,863.96-19,829.25

Finding the Fourth Proportional to 66,587.31, 99,863.96 and 19,829.25

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Solution

The fourth proportional to 66,587.31, 99,863.96 and 19,829.25 is: 29,738.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,587.31 : 99,863.96 = 19,829.25 : x
  2. Step 2: Convert to fraction form
    66,587.31/99,863.96 = 19,829.25/x
  3. Step 3: Cross multiply
    66,587.31x = 99,863.96 × 19,829.25
  4. Step 4: Simplify right side
    66,587.31x = 1,980,227,329.68
  5. Step 5: Solve for x
    x = 1,980,227,329.68/66,587.31
  6. Step 6: Final answer
    x = 29,738.81

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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.