Home / 74,364.07-111,546.10-18,960.07

Finding the Fourth Proportional to 74,364.07, 111,546.10 and 18,960.07

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Solution

The fourth proportional to 74,364.07, 111,546.10 and 18,960.07 is: 28,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.07 : 111,546.10 = 18,960.07 : x
  2. Step 2: Convert to fraction form
    74,364.07/111,546.10 = 18,960.07/x
  3. Step 3: Cross multiply
    74,364.07x = 111,546.10 × 18,960.07
  4. Step 4: Simplify right side
    74,364.07x = 2,114,921,211.70
  5. Step 5: Solve for x
    x = 2,114,921,211.70/74,364.07
  6. Step 6: Final answer
    x = 28,440.10

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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.