Home / 79,172.08-109,253.37-43,355.15

Finding the Fourth Proportional to 79,172.08, 109,253.37 and 43,355.15

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Solution

The fourth proportional to 79,172.08, 109,253.37 and 43,355.15 is: 59,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,172.08 : 109,253.37 = 43,355.15 : x
  2. Step 2: Convert to fraction form
    79,172.08/109,253.37 = 43,355.15/x
  3. Step 3: Cross multiply
    79,172.08x = 109,253.37 × 43,355.15
  4. Step 4: Simplify right side
    79,172.08x = 4,736,696,244.36
  5. Step 5: Solve for x
    x = 4,736,696,244.36/79,172.08
  6. Step 6: Final answer
    x = 59,827.87

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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.