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Finding the Fourth Proportional to 79,477.93, 119,216.97 and 20,313.64

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Solution

The fourth proportional to 79,477.93, 119,216.97 and 20,313.64 is: 30,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,477.93 : 119,216.97 = 20,313.64 : x
  2. Step 2: Convert to fraction form
    79,477.93/119,216.97 = 20,313.64/x
  3. Step 3: Cross multiply
    79,477.93x = 119,216.97 × 20,313.64
  4. Step 4: Simplify right side
    79,477.93x = 2,421,730,610.47
  5. Step 5: Solve for x
    x = 2,421,730,610.47/79,477.93
  6. Step 6: Final answer
    x = 30,470.48

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1.5x scale

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.