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Finding the Fourth Proportional to 79,477.64, 119,216.51 and 20,313.37

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Solution

The fourth proportional to 79,477.64, 119,216.51 and 20,313.37 is: 30,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,477.64 : 119,216.51 = 20,313.37 : x
  2. Step 2: Convert to fraction form
    79,477.64/119,216.51 = 20,313.37/x
  3. Step 3: Cross multiply
    79,477.64x = 119,216.51 × 20,313.37
  4. Step 4: Simplify right side
    79,477.64x = 2,421,689,077.74
  5. Step 5: Solve for x
    x = 2,421,689,077.74/79,477.64
  6. Step 6: Final answer
    x = 30,470.07

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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.