Home / 53,012.38-73,157.49-29,139.45

Finding the Fourth Proportional to 53,012.38, 73,157.49 and 29,139.45

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Solution

The fourth proportional to 53,012.38, 73,157.49 and 29,139.45 is: 40,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012.38 : 73,157.49 = 29,139.45 : x
  2. Step 2: Convert to fraction form
    53,012.38/73,157.49 = 29,139.45/x
  3. Step 3: Cross multiply
    53,012.38x = 73,157.49 × 29,139.45
  4. Step 4: Simplify right side
    53,012.38x = 2,131,769,021.98
  5. Step 5: Solve for x
    x = 2,131,769,021.98/53,012.38
  6. Step 6: Final answer
    x = 40,212.67

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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.