Home / 51,486.51-71,050.39-28,825.55

Finding the Fourth Proportional to 51,486.51, 71,050.39 and 28,825.55

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Solution

The fourth proportional to 51,486.51, 71,050.39 and 28,825.55 is: 39,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,486.51 : 71,050.39 = 28,825.55 : x
  2. Step 2: Convert to fraction form
    51,486.51/71,050.39 = 28,825.55/x
  3. Step 3: Cross multiply
    51,486.51x = 71,050.39 × 28,825.55
  4. Step 4: Simplify right side
    51,486.51x = 2,048,066,142.15
  5. Step 5: Solve for x
    x = 2,048,066,142.15/51,486.51
  6. Step 6: Final answer
    x = 39,778.69

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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.