Home / 74,643.12-103,014.78-55,747.44

Finding the Fourth Proportional to 74,643.12, 103,014.78 and 55,747.44

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Solution

The fourth proportional to 74,643.12, 103,014.78 and 55,747.44 is: 76,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,643.12 : 103,014.78 = 55,747.44 : x
  2. Step 2: Convert to fraction form
    74,643.12/103,014.78 = 55,747.44/x
  3. Step 3: Cross multiply
    74,643.12x = 103,014.78 × 55,747.44
  4. Step 4: Simplify right side
    74,643.12x = 5,742,810,267.16
  5. Step 5: Solve for x
    x = 5,742,810,267.16/74,643.12
  6. Step 6: Final answer
    x = 76,936.90

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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.