Home / 53,491.20-73,815-29,287.52

Finding the Fourth Proportional to 53,491.20, 73,815 and 29,287.52

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Solution

The fourth proportional to 53,491.20, 73,815 and 29,287.52 is: 40,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,491.20 : 73,815 = 29,287.52 : x
  2. Step 2: Convert to fraction form
    53,491.20/73,815 = 29,287.52/x
  3. Step 3: Cross multiply
    53,491.20x = 73,815 × 29,287.52
  4. Step 4: Simplify right side
    53,491.20x = 2,161,858,288.80
  5. Step 5: Solve for x
    x = 2,161,858,288.80/53,491.20
  6. Step 6: Final answer
    x = 40,415.21

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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.