Home / 51,918.86-71,647.99-28,045.53

Finding the Fourth Proportional to 51,918.86, 71,647.99 and 28,045.53

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Solution

The fourth proportional to 51,918.86, 71,647.99 and 28,045.53 is: 38,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,918.86 : 71,647.99 = 28,045.53 : x
  2. Step 2: Convert to fraction form
    51,918.86/71,647.99 = 28,045.53/x
  3. Step 3: Cross multiply
    51,918.86x = 71,647.99 × 28,045.53
  4. Step 4: Simplify right side
    51,918.86x = 2,009,405,782.87
  5. Step 5: Solve for x
    x = 2,009,405,782.87/51,918.86
  6. Step 6: Final answer
    x = 38,702.81

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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.