Home / 77,930.96-107,543.08-43,939.48

Finding the Fourth Proportional to 77,930.96, 107,543.08 and 43,939.48

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Solution

The fourth proportional to 77,930.96, 107,543.08 and 43,939.48 is: 60,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,930.96 : 107,543.08 = 43,939.48 : x
  2. Step 2: Convert to fraction form
    77,930.96/107,543.08 = 43,939.48/x
  3. Step 3: Cross multiply
    77,930.96x = 107,543.08 × 43,939.48
  4. Step 4: Simplify right side
    77,930.96x = 4,725,387,012.80
  5. Step 5: Solve for x
    x = 4,725,387,012.80/77,930.96
  6. Step 6: Final answer
    x = 60,635.56

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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.