Home / 66,883.38-100,313.70-20,125.32

Finding the Fourth Proportional to 66,883.38, 100,313.70 and 20,125.32

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Solution

The fourth proportional to 66,883.38, 100,313.70 and 20,125.32 is: 30,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,883.38 : 100,313.70 = 20,125.32 : x
  2. Step 2: Convert to fraction form
    66,883.38/100,313.70 = 20,125.32/x
  3. Step 3: Cross multiply
    66,883.38x = 100,313.70 × 20,125.32
  4. Step 4: Simplify right side
    66,883.38x = 2,018,845,312.88
  5. Step 5: Solve for x
    x = 2,018,845,312.88/66,883.38
  6. Step 6: Final answer
    x = 30,184.56

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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.