Home / 61,078.37-91,613.21-18,957.44

Finding the Fourth Proportional to 61,078.37, 91,613.21 and 18,957.44

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Solution

The fourth proportional to 61,078.37, 91,613.21 and 18,957.44 is: 28,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,078.37 : 91,613.21 = 18,957.44 : x
  2. Step 2: Convert to fraction form
    61,078.37/91,613.21 = 18,957.44/x
  3. Step 3: Cross multiply
    61,078.37x = 91,613.21 × 18,957.44
  4. Step 4: Simplify right side
    61,078.37x = 1,736,752,066.03
  5. Step 5: Solve for x
    x = 1,736,752,066.03/61,078.37
  6. Step 6: Final answer
    x = 28,434.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.