Home / 76,213.48-105,164.62-43,949.28

Finding the Fourth Proportional to 76,213.48, 105,164.62 and 43,949.28

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Solution

The fourth proportional to 76,213.48, 105,164.62 and 43,949.28 is: 60,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,213.48 : 105,164.62 = 43,949.28 : x
  2. Step 2: Convert to fraction form
    76,213.48/105,164.62 = 43,949.28/x
  3. Step 3: Cross multiply
    76,213.48x = 105,164.62 × 43,949.28
  4. Step 4: Simplify right side
    76,213.48x = 4,621,909,330.47
  5. Step 5: Solve for x
    x = 4,621,909,330.47/76,213.48
  6. Step 6: Final answer
    x = 60,644.25

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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.