Home / 82,312.13-113,589.91-48,314.59

Finding the Fourth Proportional to 82,312.13, 113,589.91 and 48,314.59

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Solution

The fourth proportional to 82,312.13, 113,589.91 and 48,314.59 is: 66,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,312.13 : 113,589.91 = 48,314.59 : x
  2. Step 2: Convert to fraction form
    82,312.13/113,589.91 = 48,314.59/x
  3. Step 3: Cross multiply
    82,312.13x = 113,589.91 × 48,314.59
  4. Step 4: Simplify right side
    82,312.13x = 5,488,049,929.79
  5. Step 5: Solve for x
    x = 5,488,049,929.79/82,312.13
  6. Step 6: Final answer
    x = 66,673.65

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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.