Home / 56,654.10-84,986.71-20,640.35

Finding the Fourth Proportional to 56,654.10, 84,986.71 and 20,640.35

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Solution

The fourth proportional to 56,654.10, 84,986.71 and 20,640.35 is: 30,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,654.10 : 84,986.71 = 20,640.35 : x
  2. Step 2: Convert to fraction form
    56,654.10/84,986.71 = 20,640.35/x
  3. Step 3: Cross multiply
    56,654.10x = 84,986.71 × 20,640.35
  4. Step 4: Simplify right side
    56,654.10x = 1,754,155,439.75
  5. Step 5: Solve for x
    x = 1,754,155,439.75/56,654.10
  6. Step 6: Final answer
    x = 30,962.55

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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.