Home / 68,728.69-94,837.29-38,507.08

Finding the Fourth Proportional to 68,728.69, 94,837.29 and 38,507.08

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Solution

The fourth proportional to 68,728.69, 94,837.29 and 38,507.08 is: 53,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,728.69 : 94,837.29 = 38,507.08 : x
  2. Step 2: Convert to fraction form
    68,728.69/94,837.29 = 38,507.08/x
  3. Step 3: Cross multiply
    68,728.69x = 94,837.29 × 38,507.08
  4. Step 4: Simplify right side
    68,728.69x = 3,651,907,113.01
  5. Step 5: Solve for x
    x = 3,651,907,113.01/68,728.69
  6. Step 6: Final answer
    x = 53,135.12

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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.