Home / 55,435.12-83,114.73-19,895.65

Finding the Fourth Proportional to 55,435.12, 83,114.73 and 19,895.65

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Solution

The fourth proportional to 55,435.12, 83,114.73 and 19,895.65 is: 29,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,435.12 : 83,114.73 = 19,895.65 : x
  2. Step 2: Convert to fraction form
    55,435.12/83,114.73 = 19,895.65/x
  3. Step 3: Cross multiply
    55,435.12x = 83,114.73 × 19,895.65
  4. Step 4: Simplify right side
    55,435.12x = 1,653,621,577.92
  5. Step 5: Solve for x
    x = 1,653,621,577.92/55,435.12
  6. Step 6: Final answer
    x = 29,829.85

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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.