Home / 66,915.02-100,387.38-20,164.52

Finding the Fourth Proportional to 66,915.02, 100,387.38 and 20,164.52

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Solution

The fourth proportional to 66,915.02, 100,387.38 and 20,164.52 is: 30,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.02 : 100,387.38 = 20,164.52 : x
  2. Step 2: Convert to fraction form
    66,915.02/100,387.38 = 20,164.52/x
  3. Step 3: Cross multiply
    66,915.02x = 100,387.38 × 20,164.52
  4. Step 4: Simplify right side
    66,915.02x = 2,024,263,331.76
  5. Step 5: Solve for x
    x = 2,024,263,331.76/66,915.02
  6. Step 6: Final answer
    x = 30,251.25

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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.