Home / 73,178.20-109,896.90-56,578.60

Finding the Fourth Proportional to 73,178.20, 109,896.90 and 56,578.60

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Solution

The fourth proportional to 73,178.20, 109,896.90 and 56,578.60 is: 84,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,178.20 : 109,896.90 = 56,578.60 : x
  2. Step 2: Convert to fraction form
    73,178.20/109,896.90 = 56,578.60/x
  3. Step 3: Cross multiply
    73,178.20x = 109,896.90 × 56,578.60
  4. Step 4: Simplify right side
    73,178.20x = 6,217,812,746.34
  5. Step 5: Solve for x
    x = 6,217,812,746.34/73,178.20
  6. Step 6: Final answer
    x = 84,968.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.