Home / 68,645.01-94,719.13-38,431.60

Finding the Fourth Proportional to 68,645.01, 94,719.13 and 38,431.60

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Solution

The fourth proportional to 68,645.01, 94,719.13 and 38,431.60 is: 53,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,645.01 : 94,719.13 = 38,431.60 : x
  2. Step 2: Convert to fraction form
    68,645.01/94,719.13 = 38,431.60/x
  3. Step 3: Cross multiply
    68,645.01x = 94,719.13 × 38,431.60
  4. Step 4: Simplify right side
    68,645.01x = 3,640,207,716.51
  5. Step 5: Solve for x
    x = 3,640,207,716.51/68,645.01
  6. Step 6: Final answer
    x = 53,029.46

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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.