Home / 72,790.87-100,450.33-40,957.27

Finding the Fourth Proportional to 72,790.87, 100,450.33 and 40,957.27

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Solution

The fourth proportional to 72,790.87, 100,450.33 and 40,957.27 is: 56,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,790.87 : 100,450.33 = 40,957.27 : x
  2. Step 2: Convert to fraction form
    72,790.87/100,450.33 = 40,957.27/x
  3. Step 3: Cross multiply
    72,790.87x = 100,450.33 × 40,957.27
  4. Step 4: Simplify right side
    72,790.87x = 4,114,171,287.40
  5. Step 5: Solve for x
    x = 4,114,171,287.40/72,790.87
  6. Step 6: Final answer
    x = 56,520.43

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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.