Home / 50,986.16-70,427.40-39,194.48

Finding the Fourth Proportional to 50,986.16, 70,427.40 and 39,194.48

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Solution

The fourth proportional to 50,986.16, 70,427.40 and 39,194.48 is: 54,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,986.16 : 70,427.40 = 39,194.48 : x
  2. Step 2: Convert to fraction form
    50,986.16/70,427.40 = 39,194.48/x
  3. Step 3: Cross multiply
    50,986.16x = 70,427.40 × 39,194.48
  4. Step 4: Simplify right side
    50,986.16x = 2,760,365,320.75
  5. Step 5: Solve for x
    x = 2,760,365,320.75/50,986.16
  6. Step 6: Final answer
    x = 54,139.50

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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.