Home / 69,810.36-96,335.46-37,979.28

Finding the Fourth Proportional to 69,810.36, 96,335.46 and 37,979.28

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Solution

The fourth proportional to 69,810.36, 96,335.46 and 37,979.28 is: 52,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,810.36 : 96,335.46 = 37,979.28 : x
  2. Step 2: Convert to fraction form
    69,810.36/96,335.46 = 37,979.28/x
  3. Step 3: Cross multiply
    69,810.36x = 96,335.46 × 37,979.28
  4. Step 4: Simplify right side
    69,810.36x = 3,658,751,409.27
  5. Step 5: Solve for x
    x = 3,658,751,409.27/69,810.36
  6. Step 6: Final answer
    x = 52,409.86

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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.