Home / 66,376.26-91,688.76-61,652.34

Finding the Fourth Proportional to 66,376.26, 91,688.76 and 61,652.34

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Solution

The fourth proportional to 66,376.26, 91,688.76 and 61,652.34 is: 85,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376.26 : 91,688.76 = 61,652.34 : x
  2. Step 2: Convert to fraction form
    66,376.26/91,688.76 = 61,652.34/x
  3. Step 3: Cross multiply
    66,376.26x = 91,688.76 × 61,652.34
  4. Step 4: Simplify right side
    66,376.26x = 5,652,826,605.70
  5. Step 5: Solve for x
    x = 5,652,826,605.70/66,376.26
  6. Step 6: Final answer
    x = 85,163.38

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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.