Home / 51,442.26-70,993.08-28,779.90

Finding the Fourth Proportional to 51,442.26, 70,993.08 and 28,779.90

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Solution

The fourth proportional to 51,442.26, 70,993.08 and 28,779.90 is: 39,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,442.26 : 70,993.08 = 28,779.90 : x
  2. Step 2: Convert to fraction form
    51,442.26/70,993.08 = 28,779.90/x
  3. Step 3: Cross multiply
    51,442.26x = 70,993.08 × 28,779.90
  4. Step 4: Simplify right side
    51,442.26x = 2,043,173,743.09
  5. Step 5: Solve for x
    x = 2,043,173,743.09/51,442.26
  6. Step 6: Final answer
    x = 39,717.81

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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.