Home / 79,277.28-118,915.68-20,112.84

Finding the Fourth Proportional to 79,277.28, 118,915.68 and 20,112.84

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Solution

The fourth proportional to 79,277.28, 118,915.68 and 20,112.84 is: 30,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,277.28 : 118,915.68 = 20,112.84 : x
  2. Step 2: Convert to fraction form
    79,277.28/118,915.68 = 20,112.84/x
  3. Step 3: Cross multiply
    79,277.28x = 118,915.68 × 20,112.84
  4. Step 4: Simplify right side
    79,277.28x = 2,391,732,045.33
  5. Step 5: Solve for x
    x = 2,391,732,045.33/79,277.28
  6. Step 6: Final answer
    x = 30,169.20

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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.