Home / 79,201.14-118,802.18-20,036.78

Finding the Fourth Proportional to 79,201.14, 118,802.18 and 20,036.78

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Solution

The fourth proportional to 79,201.14, 118,802.18 and 20,036.78 is: 30,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.14 : 118,802.18 = 20,036.78 : x
  2. Step 2: Convert to fraction form
    79,201.14/118,802.18 = 20,036.78/x
  3. Step 3: Cross multiply
    79,201.14x = 118,802.18 × 20,036.78
  4. Step 4: Simplify right side
    79,201.14x = 2,380,413,144.18
  5. Step 5: Solve for x
    x = 2,380,413,144.18/79,201.14
  6. Step 6: Final answer
    x = 30,055.29

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1.5x scale

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.