Home / 83,435.45-125,152.02-20,256.05

Finding the Fourth Proportional to 83,435.45, 125,152.02 and 20,256.05

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Solution

The fourth proportional to 83,435.45, 125,152.02 and 20,256.05 is: 30,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,435.45 : 125,152.02 = 20,256.05 : x
  2. Step 2: Convert to fraction form
    83,435.45/125,152.02 = 20,256.05/x
  3. Step 3: Cross multiply
    83,435.45x = 125,152.02 × 20,256.05
  4. Step 4: Simplify right side
    83,435.45x = 2,535,085,887.60
  5. Step 5: Solve for x
    x = 2,535,085,887.60/83,435.45
  6. Step 6: Final answer
    x = 30,383.80

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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.