Home / 53,011.28-73,157.32-29,138.80

Finding the Fourth Proportional to 53,011.28, 73,157.32 and 29,138.80

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Solution

The fourth proportional to 53,011.28, 73,157.32 and 29,138.80 is: 40,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,011.28 : 73,157.32 = 29,138.80 : x
  2. Step 2: Convert to fraction form
    53,011.28/73,157.32 = 29,138.80/x
  3. Step 3: Cross multiply
    53,011.28x = 73,157.32 × 29,138.80
  4. Step 4: Simplify right side
    53,011.28x = 2,131,716,516.02
  5. Step 5: Solve for x
    x = 2,131,716,516.02/53,011.28
  6. Step 6: Final answer
    x = 40,212.51

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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.