Home / 84,040.72-116,005.44-57,184.40

Finding the Fourth Proportional to 84,040.72, 116,005.44 and 57,184.40

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Solution

The fourth proportional to 84,040.72, 116,005.44 and 57,184.40 is: 78,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,040.72 : 116,005.44 = 57,184.40 : x
  2. Step 2: Convert to fraction form
    84,040.72/116,005.44 = 57,184.40/x
  3. Step 3: Cross multiply
    84,040.72x = 116,005.44 × 57,184.40
  4. Step 4: Simplify right side
    84,040.72x = 6,633,701,483.14
  5. Step 5: Solve for x
    x = 6,633,701,483.14/84,040.72
  6. Step 6: Final answer
    x = 78,934.37

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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.