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Finding the Fourth Proportional to 66,668.80, 100,003.20 and 62,003.20

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Solution

The fourth proportional to 66,668.80, 100,003.20 and 62,003.20 is: 93,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,668.80 : 100,003.20 = 62,003.20 : x
  2. Step 2: Convert to fraction form
    66,668.80/100,003.20 = 62,003.20/x
  3. Step 3: Cross multiply
    66,668.80x = 100,003.20 × 62,003.20
  4. Step 4: Simplify right side
    66,668.80x = 6,200,518,410.24
  5. Step 5: Solve for x
    x = 6,200,518,410.24/66,668.80
  6. Step 6: Final answer
    x = 93,004.80

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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.