Home / 77,743.72-107,275.26-43,747.48

Finding the Fourth Proportional to 77,743.72, 107,275.26 and 43,747.48

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Solution

The fourth proportional to 77,743.72, 107,275.26 and 43,747.48 is: 60,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,743.72 : 107,275.26 = 43,747.48 : x
  2. Step 2: Convert to fraction form
    77,743.72/107,275.26 = 43,747.48/x
  3. Step 3: Cross multiply
    77,743.72x = 107,275.26 × 43,747.48
  4. Step 4: Simplify right side
    77,743.72x = 4,693,022,291.34
  5. Step 5: Solve for x
    x = 4,693,022,291.34/77,743.72
  6. Step 6: Final answer
    x = 60,365.29

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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.