Home / 54,001.40-74,521.64-30,128.01

Finding the Fourth Proportional to 54,001.40, 74,521.64 and 30,128.01

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Solution

The fourth proportional to 54,001.40, 74,521.64 and 30,128.01 is: 41,576.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,001.40 : 74,521.64 = 30,128.01 : x
  2. Step 2: Convert to fraction form
    54,001.40/74,521.64 = 30,128.01/x
  3. Step 3: Cross multiply
    54,001.40x = 74,521.64 × 30,128.01
  4. Step 4: Simplify right side
    54,001.40x = 2,245,188,564.50
  5. Step 5: Solve for x
    x = 2,245,188,564.50/54,001.40
  6. Step 6: Final answer
    x = 41,576.49

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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.