Home / 72,539.44-100,104.49-40,708.34

Finding the Fourth Proportional to 72,539.44, 100,104.49 and 40,708.34

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Solution

The fourth proportional to 72,539.44, 100,104.49 and 40,708.34 is: 56,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,539.44 : 100,104.49 = 40,708.34 : x
  2. Step 2: Convert to fraction form
    72,539.44/100,104.49 = 40,708.34/x
  3. Step 3: Cross multiply
    72,539.44x = 100,104.49 × 40,708.34
  4. Step 4: Simplify right side
    72,539.44x = 4,075,087,311.22
  5. Step 5: Solve for x
    x = 4,075,087,311.22/72,539.44
  6. Step 6: Final answer
    x = 56,177.54

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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.