Home / 53,012.12-73,157.34-29,138.82

Finding the Fourth Proportional to 53,012.12, 73,157.34 and 29,138.82

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Solution

The fourth proportional to 53,012.12, 73,157.34 and 29,138.82 is: 40,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012.12 : 73,157.34 = 29,138.82 : x
  2. Step 2: Convert to fraction form
    53,012.12/73,157.34 = 29,138.82/x
  3. Step 3: Cross multiply
    53,012.12x = 73,157.34 × 29,138.82
  4. Step 4: Simplify right side
    53,012.12x = 2,131,718,561.94
  5. Step 5: Solve for x
    x = 2,131,718,561.94/53,012.12
  6. Step 6: Final answer
    x = 40,211.91

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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.