Home / 57,210.69-78,955.41-31,725.04

Finding the Fourth Proportional to 57,210.69, 78,955.41 and 31,725.04

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Solution

The fourth proportional to 57,210.69, 78,955.41 and 31,725.04 is: 43,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,210.69 : 78,955.41 = 31,725.04 : x
  2. Step 2: Convert to fraction form
    57,210.69/78,955.41 = 31,725.04/x
  3. Step 3: Cross multiply
    57,210.69x = 78,955.41 × 31,725.04
  4. Step 4: Simplify right side
    57,210.69x = 2,504,863,540.47
  5. Step 5: Solve for x
    x = 2,504,863,540.47/57,210.69
  6. Step 6: Final answer
    x = 43,783.14

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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.