Home / 53,215.20-79,736.40-33,458.40

Finding the Fourth Proportional to 53,215.20, 79,736.40 and 33,458.40

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Solution

The fourth proportional to 53,215.20, 79,736.40 and 33,458.40 is: 50,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,215.20 : 79,736.40 = 33,458.40 : x
  2. Step 2: Convert to fraction form
    53,215.20/79,736.40 = 33,458.40/x
  3. Step 3: Cross multiply
    53,215.20x = 79,736.40 × 33,458.40
  4. Step 4: Simplify right side
    53,215.20x = 2,667,852,365.76
  5. Step 5: Solve for x
    x = 2,667,852,365.76/53,215.20
  6. Step 6: Final answer
    x = 50,133.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.