Home / 57,021.02-85,506.77-21,936.05

Finding the Fourth Proportional to 57,021.02, 85,506.77 and 21,936.05

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Solution

The fourth proportional to 57,021.02, 85,506.77 and 21,936.05 is: 32,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.02 : 85,506.77 = 21,936.05 : x
  2. Step 2: Convert to fraction form
    57,021.02/85,506.77 = 21,936.05/x
  3. Step 3: Cross multiply
    57,021.02x = 85,506.77 × 21,936.05
  4. Step 4: Simplify right side
    57,021.02x = 1,875,680,409.36
  5. Step 5: Solve for x
    x = 1,875,680,409.36/57,021.02
  6. Step 6: Final answer
    x = 32,894.55

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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.