Home / 57,111.66-85,669.44-19,671.42

Finding the Fourth Proportional to 57,111.66, 85,669.44 and 19,671.42

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Solution

The fourth proportional to 57,111.66, 85,669.44 and 19,671.42 is: 29,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,111.66 : 85,669.44 = 19,671.42 : x
  2. Step 2: Convert to fraction form
    57,111.66/85,669.44 = 19,671.42/x
  3. Step 3: Cross multiply
    57,111.66x = 85,669.44 × 19,671.42
  4. Step 4: Simplify right side
    57,111.66x = 1,685,239,535.40
  5. Step 5: Solve for x
    x = 1,685,239,535.40/57,111.66
  6. Step 6: Final answer
    x = 29,507.80

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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.