Home / 79,543.08-109,766.64-43,732.81

Finding the Fourth Proportional to 79,543.08, 109,766.64 and 43,732.81

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Solution

The fourth proportional to 79,543.08, 109,766.64 and 43,732.81 is: 60,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,543.08 : 109,766.64 = 43,732.81 : x
  2. Step 2: Convert to fraction form
    79,543.08/109,766.64 = 43,732.81/x
  3. Step 3: Cross multiply
    79,543.08x = 109,766.64 × 43,732.81
  4. Step 4: Simplify right side
    79,543.08x = 4,800,403,502.13
  5. Step 5: Solve for x
    x = 4,800,403,502.13/79,543.08
  6. Step 6: Final answer
    x = 60,349.74

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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.