Home / 66,364.40-91,576.23-40,866.68

Finding the Fourth Proportional to 66,364.40, 91,576.23 and 40,866.68

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Solution

The fourth proportional to 66,364.40, 91,576.23 and 40,866.68 is: 56,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364.40 : 91,576.23 = 40,866.68 : x
  2. Step 2: Convert to fraction form
    66,364.40/91,576.23 = 40,866.68/x
  3. Step 3: Cross multiply
    66,364.40x = 91,576.23 × 40,866.68
  4. Step 4: Simplify right side
    66,364.40x = 3,742,416,487.02
  5. Step 5: Solve for x
    x = 3,742,416,487.02/66,364.40
  6. Step 6: Final answer
    x = 56,391.93

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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.