Home / 53,003.09-73,142.80-29,129.76

Finding the Fourth Proportional to 53,003.09, 73,142.80 and 29,129.76

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Solution

The fourth proportional to 53,003.09, 73,142.80 and 29,129.76 is: 40,198.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,003.09 : 73,142.80 = 29,129.76 : x
  2. Step 2: Convert to fraction form
    53,003.09/73,142.80 = 29,129.76/x
  3. Step 3: Cross multiply
    53,003.09x = 73,142.80 × 29,129.76
  4. Step 4: Simplify right side
    53,003.09x = 2,130,632,136.90
  5. Step 5: Solve for x
    x = 2,130,632,136.90/53,003.09
  6. Step 6: Final answer
    x = 40,198.26

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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.