Home / 68,907.40-95,086.38-38,690.35

Finding the Fourth Proportional to 68,907.40, 95,086.38 and 38,690.35

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Solution

The fourth proportional to 68,907.40, 95,086.38 and 38,690.35 is: 53,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,907.40 : 95,086.38 = 38,690.35 : x
  2. Step 2: Convert to fraction form
    68,907.40/95,086.38 = 38,690.35/x
  3. Step 3: Cross multiply
    68,907.40x = 95,086.38 × 38,690.35
  4. Step 4: Simplify right side
    68,907.40x = 3,678,925,322.43
  5. Step 5: Solve for x
    x = 3,678,925,322.43/68,907.40
  6. Step 6: Final answer
    x = 53,389.41

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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.