Home / 54,078.24-74,611.44-42,749.76

Finding the Fourth Proportional to 54,078.24, 74,611.44 and 42,749.76

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Solution

The fourth proportional to 54,078.24, 74,611.44 and 42,749.76 is: 58,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.24 : 74,611.44 = 42,749.76 : x
  2. Step 2: Convert to fraction form
    54,078.24/74,611.44 = 42,749.76/x
  3. Step 3: Cross multiply
    54,078.24x = 74,611.44 × 42,749.76
  4. Step 4: Simplify right side
    54,078.24x = 3,189,621,153.25
  5. Step 5: Solve for x
    x = 3,189,621,153.25/54,078.24
  6. Step 6: Final answer
    x = 58,981.60

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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.