Home / 87,940.04-121,357.36-47,653.45

Finding the Fourth Proportional to 87,940.04, 121,357.36 and 47,653.45

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Solution

The fourth proportional to 87,940.04, 121,357.36 and 47,653.45 is: 65,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.04 : 121,357.36 = 47,653.45 : x
  2. Step 2: Convert to fraction form
    87,940.04/121,357.36 = 47,653.45/x
  3. Step 3: Cross multiply
    87,940.04x = 121,357.36 × 47,653.45
  4. Step 4: Simplify right side
    87,940.04x = 5,783,096,528.14
  5. Step 5: Solve for x
    x = 5,783,096,528.14/87,940.04
  6. Step 6: Final answer
    x = 65,761.81

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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.