Home / 53,178.91-73,386.57-28,979.82

Finding the Fourth Proportional to 53,178.91, 73,386.57 and 28,979.82

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Solution

The fourth proportional to 53,178.91, 73,386.57 and 28,979.82 is: 39,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,178.91 : 73,386.57 = 28,979.82 : x
  2. Step 2: Convert to fraction form
    53,178.91/73,386.57 = 28,979.82/x
  3. Step 3: Cross multiply
    53,178.91x = 73,386.57 × 28,979.82
  4. Step 4: Simplify right side
    53,178.91x = 2,126,729,589.02
  5. Step 5: Solve for x
    x = 2,126,729,589.02/53,178.91
  6. Step 6: Final answer
    x = 39,991.97

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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.