Home / 82,137.49-113,291.27-53,403.88

Finding the Fourth Proportional to 82,137.49, 113,291.27 and 53,403.88

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Solution

The fourth proportional to 82,137.49, 113,291.27 and 53,403.88 is: 73,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,137.49 : 113,291.27 = 53,403.88 : x
  2. Step 2: Convert to fraction form
    82,137.49/113,291.27 = 53,403.88/x
  3. Step 3: Cross multiply
    82,137.49x = 113,291.27 × 53,403.88
  4. Step 4: Simplify right side
    82,137.49x = 6,050,193,644.30
  5. Step 5: Solve for x
    x = 6,050,193,644.30/82,137.49
  6. Step 6: Final answer
    x = 73,659.34

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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.