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Finding the Fourth Proportional to 66,697.58, 100,038.98 and 16,777.67

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Solution

The fourth proportional to 66,697.58, 100,038.98 and 16,777.67 is: 25,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,697.58 : 100,038.98 = 16,777.67 : x
  2. Step 2: Convert to fraction form
    66,697.58/100,038.98 = 16,777.67/x
  3. Step 3: Cross multiply
    66,697.58x = 100,038.98 × 16,777.67
  4. Step 4: Simplify right side
    66,697.58x = 1,678,420,921.98
  5. Step 5: Solve for x
    x = 1,678,420,921.98/66,697.58
  6. Step 6: Final answer
    x = 25,164.65

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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.