Home / 53,507.06-80,305.12-28,215.62

Finding the Fourth Proportional to 53,507.06, 80,305.12 and 28,215.62

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Solution

The fourth proportional to 53,507.06, 80,305.12 and 28,215.62 is: 42,346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,507.06 : 80,305.12 = 28,215.62 : x
  2. Step 2: Convert to fraction form
    53,507.06/80,305.12 = 28,215.62/x
  3. Step 3: Cross multiply
    53,507.06x = 80,305.12 × 28,215.62
  4. Step 4: Simplify right side
    53,507.06x = 2,265,858,749.97
  5. Step 5: Solve for x
    x = 2,265,858,749.97/53,507.06
  6. Step 6: Final answer
    x = 42,346.91

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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.