Home / 55,181.50-76,145.20-30,976.93

Finding the Fourth Proportional to 55,181.50, 76,145.20 and 30,976.93

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Solution

The fourth proportional to 55,181.50, 76,145.20 and 30,976.93 is: 42,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,181.50 : 76,145.20 = 30,976.93 : x
  2. Step 2: Convert to fraction form
    55,181.50/76,145.20 = 30,976.93/x
  3. Step 3: Cross multiply
    55,181.50x = 76,145.20 × 30,976.93
  4. Step 4: Simplify right side
    55,181.50x = 2,358,744,530.24
  5. Step 5: Solve for x
    x = 2,358,744,530.24/55,181.50
  6. Step 6: Final answer
    x = 42,745.21

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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.