Home / 72,750.09-100,408.92-45,538.83

Finding the Fourth Proportional to 72,750.09, 100,408.92 and 45,538.83

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Solution

The fourth proportional to 72,750.09, 100,408.92 and 45,538.83 is: 62,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,750.09 : 100,408.92 = 45,538.83 : x
  2. Step 2: Convert to fraction form
    72,750.09/100,408.92 = 45,538.83/x
  3. Step 3: Cross multiply
    72,750.09x = 100,408.92 × 45,538.83
  4. Step 4: Simplify right side
    72,750.09x = 4,572,504,738.36
  5. Step 5: Solve for x
    x = 4,572,504,738.36/72,750.09
  6. Step 6: Final answer
    x = 62,852.22

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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.