Home / 66,885.20-100,295.40-37,271.60

Finding the Fourth Proportional to 66,885.20, 100,295.40 and 37,271.60

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Solution

The fourth proportional to 66,885.20, 100,295.40 and 37,271.60 is: 55,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885.20 : 100,295.40 = 37,271.60 : x
  2. Step 2: Convert to fraction form
    66,885.20/100,295.40 = 37,271.60/x
  3. Step 3: Cross multiply
    66,885.20x = 100,295.40 × 37,271.60
  4. Step 4: Simplify right side
    66,885.20x = 3,738,170,030.64
  5. Step 5: Solve for x
    x = 3,738,170,030.64/66,885.20
  6. Step 6: Final answer
    x = 55,889.35

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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.