Home / 53,140.20-73,341.54-40,372.44

Finding the Fourth Proportional to 53,140.20, 73,341.54 and 40,372.44

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Solution

The fourth proportional to 53,140.20, 73,341.54 and 40,372.44 is: 55,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,140.20 : 73,341.54 = 40,372.44 : x
  2. Step 2: Convert to fraction form
    53,140.20/73,341.54 = 40,372.44/x
  3. Step 3: Cross multiply
    53,140.20x = 73,341.54 × 40,372.44
  4. Step 4: Simplify right side
    53,140.20x = 2,960,976,923.16
  5. Step 5: Solve for x
    x = 2,960,976,923.16/53,140.20
  6. Step 6: Final answer
    x = 55,720.09

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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.