Home / 53,008.20-73,147-30,342.03

Finding the Fourth Proportional to 53,008.20, 73,147 and 30,342.03

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Solution

The fourth proportional to 53,008.20, 73,147 and 30,342.03 is: 41,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,008.20 : 73,147 = 30,342.03 : x
  2. Step 2: Convert to fraction form
    53,008.20/73,147 = 30,342.03/x
  3. Step 3: Cross multiply
    53,008.20x = 73,147 × 30,342.03
  4. Step 4: Simplify right side
    53,008.20x = 2,219,428,468.41
  5. Step 5: Solve for x
    x = 2,219,428,468.41/53,008.20
  6. Step 6: Final answer
    x = 41,869.53

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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.