Home / 53,109.72-73,290.96-30,143.90

Finding the Fourth Proportional to 53,109.72, 73,290.96 and 30,143.90

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Solution

The fourth proportional to 53,109.72, 73,290.96 and 30,143.90 is: 41,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,109.72 : 73,290.96 = 30,143.90 : x
  2. Step 2: Convert to fraction form
    53,109.72/73,290.96 = 30,143.90/x
  3. Step 3: Cross multiply
    53,109.72x = 73,290.96 × 30,143.90
  4. Step 4: Simplify right side
    53,109.72x = 2,209,275,369.14
  5. Step 5: Solve for x
    x = 2,209,275,369.14/53,109.72
  6. Step 6: Final answer
    x = 41,598.32

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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.