Home / 79,180.96-109,268.38-42,882.10

Finding the Fourth Proportional to 79,180.96, 109,268.38 and 42,882.10

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Solution

The fourth proportional to 79,180.96, 109,268.38 and 42,882.10 is: 59,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,180.96 : 109,268.38 = 42,882.10 : x
  2. Step 2: Convert to fraction form
    79,180.96/109,268.38 = 42,882.10/x
  3. Step 3: Cross multiply
    79,180.96x = 109,268.38 × 42,882.10
  4. Step 4: Simplify right side
    79,180.96x = 4,685,657,598.00
  5. Step 5: Solve for x
    x = 4,685,657,598.00/79,180.96
  6. Step 6: Final answer
    x = 59,176.57

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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.