Home / 72,775.07-100,429.44-40,944

Finding the Fourth Proportional to 72,775.07, 100,429.44 and 40,944

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Solution

The fourth proportional to 72,775.07, 100,429.44 and 40,944 is: 56,502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,775.07 : 100,429.44 = 40,944 : x
  2. Step 2: Convert to fraction form
    72,775.07/100,429.44 = 40,944/x
  3. Step 3: Cross multiply
    72,775.07x = 100,429.44 × 40,944
  4. Step 4: Simplify right side
    72,775.07x = 4,111,982,991.36
  5. Step 5: Solve for x
    x = 4,111,982,991.36/72,775.07
  6. Step 6: Final answer
    x = 56,502.63

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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.