Home / 53,480.20-73,810.40-30,814.85

Finding the Fourth Proportional to 53,480.20, 73,810.40 and 30,814.85

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Solution

The fourth proportional to 53,480.20, 73,810.40 and 30,814.85 is: 42,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,480.20 : 73,810.40 = 30,814.85 : x
  2. Step 2: Convert to fraction form
    53,480.20/73,810.40 = 30,814.85/x
  3. Step 3: Cross multiply
    53,480.20x = 73,810.40 × 30,814.85
  4. Step 4: Simplify right side
    53,480.20x = 2,274,456,404.44
  5. Step 5: Solve for x
    x = 2,274,456,404.44/53,480.20
  6. Step 6: Final answer
    x = 42,528.94

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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.