Home / 66,841-92,240.60-39,984.64

Finding the Fourth Proportional to 66,841, 92,240.60 and 39,984.64

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Solution

The fourth proportional to 66,841, 92,240.60 and 39,984.64 is: 55,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,841 : 92,240.60 = 39,984.64 : x
  2. Step 2: Convert to fraction form
    66,841/92,240.60 = 39,984.64/x
  3. Step 3: Cross multiply
    66,841x = 92,240.60 × 39,984.64
  4. Step 4: Simplify right side
    66,841x = 3,688,207,184.38
  5. Step 5: Solve for x
    x = 3,688,207,184.38/66,841
  6. Step 6: Final answer
    x = 55,178.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.