Home / 72,529.44-100,090.50-40,701.30

Finding the Fourth Proportional to 72,529.44, 100,090.50 and 40,701.30

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Solution

The fourth proportional to 72,529.44, 100,090.50 and 40,701.30 is: 56,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,529.44 : 100,090.50 = 40,701.30 : x
  2. Step 2: Convert to fraction form
    72,529.44/100,090.50 = 40,701.30/x
  3. Step 3: Cross multiply
    72,529.44x = 100,090.50 × 40,701.30
  4. Step 4: Simplify right side
    72,529.44x = 4,073,813,467.65
  5. Step 5: Solve for x
    x = 4,073,813,467.65/72,529.44
  6. Step 6: Final answer
    x = 56,167.72

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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.