Home / 57,243.36-78,955.92-55,316.64

Finding the Fourth Proportional to 57,243.36, 78,955.92 and 55,316.64

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Solution

The fourth proportional to 57,243.36, 78,955.92 and 55,316.64 is: 76,298.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,243.36 : 78,955.92 = 55,316.64 : x
  2. Step 2: Convert to fraction form
    57,243.36/78,955.92 = 55,316.64/x
  3. Step 3: Cross multiply
    57,243.36x = 78,955.92 × 55,316.64
  4. Step 4: Simplify right side
    57,243.36x = 4,367,576,202.51
  5. Step 5: Solve for x
    x = 4,367,576,202.51/57,243.36
  6. Step 6: Final answer
    x = 76,298.39

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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.