Home / 53,129.78-73,319.10-29,256.40

Finding the Fourth Proportional to 53,129.78, 73,319.10 and 29,256.40

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Solution

The fourth proportional to 53,129.78, 73,319.10 and 29,256.40 is: 40,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.78 : 73,319.10 = 29,256.40 : x
  2. Step 2: Convert to fraction form
    53,129.78/73,319.10 = 29,256.40/x
  3. Step 3: Cross multiply
    53,129.78x = 73,319.10 × 29,256.40
  4. Step 4: Simplify right side
    53,129.78x = 2,145,052,660.80
  5. Step 5: Solve for x
    x = 2,145,052,660.80/53,129.78
  6. Step 6: Final answer
    x = 40,373.83

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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.