Home / 83,445.58-115,170.02-53,240.28

Finding the Fourth Proportional to 83,445.58, 115,170.02 and 53,240.28

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Solution

The fourth proportional to 83,445.58, 115,170.02 and 53,240.28 is: 73,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,445.58 : 115,170.02 = 53,240.28 : x
  2. Step 2: Convert to fraction form
    83,445.58/115,170.02 = 53,240.28/x
  3. Step 3: Cross multiply
    83,445.58x = 115,170.02 × 53,240.28
  4. Step 4: Simplify right side
    83,445.58x = 6,131,684,112.41
  5. Step 5: Solve for x
    x = 6,131,684,112.41/83,445.58
  6. Step 6: Final answer
    x = 73,481.23

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1.5x scale

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.