Home / 72,576.08-100,154.92-40,745.04

Finding the Fourth Proportional to 72,576.08, 100,154.92 and 40,745.04

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Solution

The fourth proportional to 72,576.08, 100,154.92 and 40,745.04 is: 56,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,576.08 : 100,154.92 = 40,745.04 : x
  2. Step 2: Convert to fraction form
    72,576.08/100,154.92 = 40,745.04/x
  3. Step 3: Cross multiply
    72,576.08x = 100,154.92 × 40,745.04
  4. Step 4: Simplify right side
    72,576.08x = 4,080,816,017.87
  5. Step 5: Solve for x
    x = 4,080,816,017.87/72,576.08
  6. Step 6: Final answer
    x = 56,228.11

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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.