Home / 53,129.72-73,319.12-29,256.44

Finding the Fourth Proportional to 53,129.72, 73,319.12 and 29,256.44

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Solution

The fourth proportional to 53,129.72, 73,319.12 and 29,256.44 is: 40,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.72 : 73,319.12 = 29,256.44 : x
  2. Step 2: Convert to fraction form
    53,129.72/73,319.12 = 29,256.44/x
  3. Step 3: Cross multiply
    53,129.72x = 73,319.12 × 29,256.44
  4. Step 4: Simplify right side
    53,129.72x = 2,145,056,608.95
  5. Step 5: Solve for x
    x = 2,145,056,608.95/53,129.72
  6. Step 6: Final answer
    x = 40,373.95

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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.