Home / 53,166.39-73,380.21-30,520.68

Finding the Fourth Proportional to 53,166.39, 73,380.21 and 30,520.68

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Solution

The fourth proportional to 53,166.39, 73,380.21 and 30,520.68 is: 42,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,166.39 : 73,380.21 = 30,520.68 : x
  2. Step 2: Convert to fraction form
    53,166.39/73,380.21 = 30,520.68/x
  3. Step 3: Cross multiply
    53,166.39x = 73,380.21 × 30,520.68
  4. Step 4: Simplify right side
    53,166.39x = 2,239,613,907.74
  5. Step 5: Solve for x
    x = 2,239,613,907.74/53,166.39
  6. Step 6: Final answer
    x = 42,124.62

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1.5x scale

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.