Home / 81,096,394.32-111,917,056.32-50,172,642

Finding the Fourth Proportional to 81,096,394.32, 111,917,056.32 and 50,172,642

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Solution

The fourth proportional to 81,096,394.32, 111,917,056.32 and 50,172,642 is: 69,240,740.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,096,394.32 : 111,917,056.32 = 50,172,642 : x
  2. Step 2: Convert to fraction form
    81,096,394.32/111,917,056.32 = 50,172,642/x
  3. Step 3: Cross multiply
    81,096,394.32x = 111,917,056.32 × 50,172,642
  4. Step 4: Simplify right side
    81,096,394.32x = 5,615,174,400,437,197
  5. Step 5: Solve for x
    x = 5,615,174,400,437,197/81,096,394.32
  6. Step 6: Final answer
    x = 69,240,740.57

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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.