Home / 66,327.30-91,509.21-40,807.44

Finding the Fourth Proportional to 66,327.30, 91,509.21 and 40,807.44

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Solution

The fourth proportional to 66,327.30, 91,509.21 and 40,807.44 is: 56,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,327.30 : 91,509.21 = 40,807.44 : x
  2. Step 2: Convert to fraction form
    66,327.30/91,509.21 = 40,807.44/x
  3. Step 3: Cross multiply
    66,327.30x = 91,509.21 × 40,807.44
  4. Step 4: Simplify right side
    66,327.30x = 3,734,256,596.52
  5. Step 5: Solve for x
    x = 3,734,256,596.52/66,327.30
  6. Step 6: Final answer
    x = 56,300.45

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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.