Home / 77,084.32-115,617.84-21,684.64

Finding the Fourth Proportional to 77,084.32, 115,617.84 and 21,684.64

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Solution

The fourth proportional to 77,084.32, 115,617.84 and 21,684.64 is: 32,524.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,084.32 : 115,617.84 = 21,684.64 : x
  2. Step 2: Convert to fraction form
    77,084.32/115,617.84 = 21,684.64/x
  3. Step 3: Cross multiply
    77,084.32x = 115,617.84 × 21,684.64
  4. Step 4: Simplify right side
    77,084.32x = 2,507,131,237.98
  5. Step 5: Solve for x
    x = 2,507,131,237.98/77,084.32
  6. Step 6: Final answer
    x = 32,524.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.