Home / 53,918.72-74,390.24-30,040.80

Finding the Fourth Proportional to 53,918.72, 74,390.24 and 30,040.80

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Solution

The fourth proportional to 53,918.72, 74,390.24 and 30,040.80 is: 41,446.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,918.72 : 74,390.24 = 30,040.80 : x
  2. Step 2: Convert to fraction form
    53,918.72/74,390.24 = 30,040.80/x
  3. Step 3: Cross multiply
    53,918.72x = 74,390.24 × 30,040.80
  4. Step 4: Simplify right side
    53,918.72x = 2,234,742,321.79
  5. Step 5: Solve for x
    x = 2,234,742,321.79/53,918.72
  6. Step 6: Final answer
    x = 41,446.50

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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.