Home / 55,435.37-83,115.10-19,895.90

Finding the Fourth Proportional to 55,435.37, 83,115.10 and 19,895.90

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Solution

The fourth proportional to 55,435.37, 83,115.10 and 19,895.90 is: 29,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,435.37 : 83,115.10 = 19,895.90 : x
  2. Step 2: Convert to fraction form
    55,435.37/83,115.10 = 19,895.90/x
  3. Step 3: Cross multiply
    55,435.37x = 83,115.10 × 19,895.90
  4. Step 4: Simplify right side
    55,435.37x = 1,653,649,718.09
  5. Step 5: Solve for x
    x = 1,653,649,718.09/55,435.37
  6. Step 6: Final answer
    x = 29,830.23

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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.