Home / 79,623.04-109,877.40-43,813.12

Finding the Fourth Proportional to 79,623.04, 109,877.40 and 43,813.12

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Solution

The fourth proportional to 79,623.04, 109,877.40 and 43,813.12 is: 60,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.04 : 109,877.40 = 43,813.12 : x
  2. Step 2: Convert to fraction form
    79,623.04/109,877.40 = 43,813.12/x
  3. Step 3: Cross multiply
    79,623.04x = 109,877.40 × 43,813.12
  4. Step 4: Simplify right side
    79,623.04x = 4,814,071,711.49
  5. Step 5: Solve for x
    x = 4,814,071,711.49/79,623.04
  6. Step 6: Final answer
    x = 60,460.79

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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.