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Finding the Fourth Proportional to 51,506.67, 71,083.73 and 28,845.30

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Solution

The fourth proportional to 51,506.67, 71,083.73 and 28,845.30 is: 39,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,506.67 : 71,083.73 = 28,845.30 : x
  2. Step 2: Convert to fraction form
    51,506.67/71,083.73 = 28,845.30/x
  3. Step 3: Cross multiply
    51,506.67x = 71,083.73 × 28,845.30
  4. Step 4: Simplify right side
    51,506.67x = 2,050,431,372.74
  5. Step 5: Solve for x
    x = 2,050,431,372.74/51,506.67
  6. Step 6: Final answer
    x = 39,809.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.