Home / 82,109.24-113,328.86-53,378.92

Finding the Fourth Proportional to 82,109.24, 113,328.86 and 53,378.92

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Solution

The fourth proportional to 82,109.24, 113,328.86 and 53,378.92 is: 73,674.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,109.24 : 113,328.86 = 53,378.92 : x
  2. Step 2: Convert to fraction form
    82,109.24/113,328.86 = 53,378.92/x
  3. Step 3: Cross multiply
    82,109.24x = 113,328.86 × 53,378.92
  4. Step 4: Simplify right side
    82,109.24x = 6,049,372,151.63
  5. Step 5: Solve for x
    x = 6,049,372,151.63/82,109.24
  6. Step 6: Final answer
    x = 73,674.68

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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.