Home / 103,955.36-155,979.12-38,276

Finding the Fourth Proportional to 103,955.36, 155,979.12 and 38,276

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Solution

The fourth proportional to 103,955.36, 155,979.12 and 38,276 is: 57,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.36 : 155,979.12 = 38,276 : x
  2. Step 2: Convert to fraction form
    103,955.36/155,979.12 = 38,276/x
  3. Step 3: Cross multiply
    103,955.36x = 155,979.12 × 38,276
  4. Step 4: Simplify right side
    103,955.36x = 5,970,256,797.12
  5. Step 5: Solve for x
    x = 5,970,256,797.12/103,955.36
  6. Step 6: Final answer
    x = 57,430.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.