Home / 84,686.24-127,078.57-37,939.12

Finding the Fourth Proportional to 84,686.24, 127,078.57 and 37,939.12

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Solution

The fourth proportional to 84,686.24, 127,078.57 and 37,939.12 is: 56,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,686.24 : 127,078.57 = 37,939.12 : x
  2. Step 2: Convert to fraction form
    84,686.24/127,078.57 = 37,939.12/x
  3. Step 3: Cross multiply
    84,686.24x = 127,078.57 × 37,939.12
  4. Step 4: Simplify right side
    84,686.24x = 4,821,248,846.39
  5. Step 5: Solve for x
    x = 4,821,248,846.39/84,686.24
  6. Step 6: Final answer
    x = 56,930.72

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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.