Home / 85,220.51-117,604.41-51,229.36

Finding the Fourth Proportional to 85,220.51, 117,604.41 and 51,229.36

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Solution

The fourth proportional to 85,220.51, 117,604.41 and 51,229.36 is: 70,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.51 : 117,604.41 = 51,229.36 : x
  2. Step 2: Convert to fraction form
    85,220.51/117,604.41 = 51,229.36/x
  3. Step 3: Cross multiply
    85,220.51x = 117,604.41 × 51,229.36
  4. Step 4: Simplify right side
    85,220.51x = 6,024,798,612.37
  5. Step 5: Solve for x
    x = 6,024,798,612.37/85,220.51
  6. Step 6: Final answer
    x = 70,696.58

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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.