Home / 48,739.20-67,270.78-30,858.06

Finding the Fourth Proportional to 48,739.20, 67,270.78 and 30,858.06

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Solution

The fourth proportional to 48,739.20, 67,270.78 and 30,858.06 is: 42,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,739.20 : 67,270.78 = 30,858.06 : x
  2. Step 2: Convert to fraction form
    48,739.20/67,270.78 = 30,858.06/x
  3. Step 3: Cross multiply
    48,739.20x = 67,270.78 × 30,858.06
  4. Step 4: Simplify right side
    48,739.20x = 2,075,845,765.49
  5. Step 5: Solve for x
    x = 2,075,845,765.49/48,739.20
  6. Step 6: Final answer
    x = 42,590.89

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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.