Home / 66,962.02-100,440.15-20,213.50

Finding the Fourth Proportional to 66,962.02, 100,440.15 and 20,213.50

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Solution

The fourth proportional to 66,962.02, 100,440.15 and 20,213.50 is: 30,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,962.02 : 100,440.15 = 20,213.50 : x
  2. Step 2: Convert to fraction form
    66,962.02/100,440.15 = 20,213.50/x
  3. Step 3: Cross multiply
    66,962.02x = 100,440.15 × 20,213.50
  4. Step 4: Simplify right side
    66,962.02x = 2,030,246,972.03
  5. Step 5: Solve for x
    x = 2,030,246,972.03/66,962.02
  6. Step 6: Final answer
    x = 30,319.38

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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.