Home / 51,181.20-70,629.12-28,825.20

Finding the Fourth Proportional to 51,181.20, 70,629.12 and 28,825.20

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Solution

The fourth proportional to 51,181.20, 70,629.12 and 28,825.20 is: 39,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,181.20 : 70,629.12 = 28,825.20 : x
  2. Step 2: Convert to fraction form
    51,181.20/70,629.12 = 28,825.20/x
  3. Step 3: Cross multiply
    51,181.20x = 70,629.12 × 28,825.20
  4. Step 4: Simplify right side
    51,181.20x = 2,035,898,509.82
  5. Step 5: Solve for x
    x = 2,035,898,509.82/51,181.20
  6. Step 6: Final answer
    x = 39,778.25

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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.