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Finding the Fourth Proportional to 63,140.34, 87,129.99 and 34,845.96

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Solution

The fourth proportional to 63,140.34, 87,129.99 and 34,845.96 is: 48,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,140.34 : 87,129.99 = 34,845.96 : x
  2. Step 2: Convert to fraction form
    63,140.34/87,129.99 = 34,845.96/x
  3. Step 3: Cross multiply
    63,140.34x = 87,129.99 × 34,845.96
  4. Step 4: Simplify right side
    63,140.34x = 3,036,128,146.34
  5. Step 5: Solve for x
    x = 3,036,128,146.34/63,140.34
  6. Step 6: Final answer
    x = 48,085.39

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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.