Home / 61,644.24-85,077.96-40,455.12

Finding the Fourth Proportional to 61,644.24, 85,077.96 and 40,455.12

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Solution

The fourth proportional to 61,644.24, 85,077.96 and 40,455.12 is: 55,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,644.24 : 85,077.96 = 40,455.12 : x
  2. Step 2: Convert to fraction form
    61,644.24/85,077.96 = 40,455.12/x
  3. Step 3: Cross multiply
    61,644.24x = 85,077.96 × 40,455.12
  4. Step 4: Simplify right side
    61,644.24x = 3,441,839,081.16
  5. Step 5: Solve for x
    x = 3,441,839,081.16/61,644.24
  6. Step 6: Final answer
    x = 55,833.91

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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.