Home / 51,531.03-71,109.09-28,866.20

Finding the Fourth Proportional to 51,531.03, 71,109.09 and 28,866.20

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Solution

The fourth proportional to 51,531.03, 71,109.09 and 28,866.20 is: 39,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.03 : 71,109.09 = 28,866.20 : x
  2. Step 2: Convert to fraction form
    51,531.03/71,109.09 = 28,866.20/x
  3. Step 3: Cross multiply
    51,531.03x = 71,109.09 × 28,866.20
  4. Step 4: Simplify right side
    51,531.03x = 2,052,648,858.21
  5. Step 5: Solve for x
    x = 2,052,648,858.21/51,531.03
  6. Step 6: Final answer
    x = 39,833.26

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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.