Home / 73,865.22-102,018.87-53,811.78

Finding the Fourth Proportional to 73,865.22, 102,018.87 and 53,811.78

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Solution

The fourth proportional to 73,865.22, 102,018.87 and 53,811.78 is: 74,322.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,865.22 : 102,018.87 = 53,811.78 : x
  2. Step 2: Convert to fraction form
    73,865.22/102,018.87 = 53,811.78/x
  3. Step 3: Cross multiply
    73,865.22x = 102,018.87 × 53,811.78
  4. Step 4: Simplify right side
    73,865.22x = 5,489,816,988.29
  5. Step 5: Solve for x
    x = 5,489,816,988.29/73,865.22
  6. Step 6: Final answer
    x = 74,322.08

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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.