Home / 79,264.07-118,896.33-20,099.78

Finding the Fourth Proportional to 79,264.07, 118,896.33 and 20,099.78

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Solution

The fourth proportional to 79,264.07, 118,896.33 and 20,099.78 is: 30,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,264.07 : 118,896.33 = 20,099.78 : x
  2. Step 2: Convert to fraction form
    79,264.07/118,896.33 = 20,099.78/x
  3. Step 3: Cross multiply
    79,264.07x = 118,896.33 × 20,099.78
  4. Step 4: Simplify right side
    79,264.07x = 2,389,790,075.81
  5. Step 5: Solve for x
    x = 2,389,790,075.81/79,264.07
  6. Step 6: Final answer
    x = 30,149.73

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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.