Home / 51,648.48-71,274.24-28,987.38

Finding the Fourth Proportional to 51,648.48, 71,274.24 and 28,987.38

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Solution

The fourth proportional to 51,648.48, 71,274.24 and 28,987.38 is: 40,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,648.48 : 71,274.24 = 28,987.38 : x
  2. Step 2: Convert to fraction form
    51,648.48/71,274.24 = 28,987.38/x
  3. Step 3: Cross multiply
    51,648.48x = 71,274.24 × 28,987.38
  4. Step 4: Simplify right side
    51,648.48x = 2,066,053,479.09
  5. Step 5: Solve for x
    x = 2,066,053,479.09/51,648.48
  6. Step 6: Final answer
    x = 40,002.21

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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.