Home / 82,031.52-113,208.84-61,852.80

Finding the Fourth Proportional to 82,031.52, 113,208.84 and 61,852.80

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Solution

The fourth proportional to 82,031.52, 113,208.84 and 61,852.80 is: 85,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,031.52 : 113,208.84 = 61,852.80 : x
  2. Step 2: Convert to fraction form
    82,031.52/113,208.84 = 61,852.80/x
  3. Step 3: Cross multiply
    82,031.52x = 113,208.84 × 61,852.80
  4. Step 4: Simplify right side
    82,031.52x = 7,002,283,738.75
  5. Step 5: Solve for x
    x = 7,002,283,738.75/82,031.52
  6. Step 6: Final answer
    x = 85,360.89

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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.