Home / 74,364.06-111,546.09-18,960.06

Finding the Fourth Proportional to 74,364.06, 111,546.09 and 18,960.06

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Solution

The fourth proportional to 74,364.06, 111,546.09 and 18,960.06 is: 28,440.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.06 : 111,546.09 = 18,960.06 : x
  2. Step 2: Convert to fraction form
    74,364.06/111,546.09 = 18,960.06/x
  3. Step 3: Cross multiply
    74,364.06x = 111,546.09 × 18,960.06
  4. Step 4: Simplify right side
    74,364.06x = 2,114,920,559.17
  5. Step 5: Solve for x
    x = 2,114,920,559.17/74,364.06
  6. Step 6: Final answer
    x = 28,440.09

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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.