Home / 79,623.94-119,440.10-20,460.01

Finding the Fourth Proportional to 79,623.94, 119,440.10 and 20,460.01

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Solution

The fourth proportional to 79,623.94, 119,440.10 and 20,460.01 is: 30,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.94 : 119,440.10 = 20,460.01 : x
  2. Step 2: Convert to fraction form
    79,623.94/119,440.10 = 20,460.01/x
  3. Step 3: Cross multiply
    79,623.94x = 119,440.10 × 20,460.01
  4. Step 4: Simplify right side
    79,623.94x = 2,443,745,640.40
  5. Step 5: Solve for x
    x = 2,443,745,640.40/79,623.94
  6. Step 6: Final answer
    x = 30,691.09

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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.