Home / 87,984.66-121,415.67-52,153.50

Finding the Fourth Proportional to 87,984.66, 121,415.67 and 52,153.50

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Solution

The fourth proportional to 87,984.66, 121,415.67 and 52,153.50 is: 71,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984.66 : 121,415.67 = 52,153.50 : x
  2. Step 2: Convert to fraction form
    87,984.66/121,415.67 = 52,153.50/x
  3. Step 3: Cross multiply
    87,984.66x = 121,415.67 × 52,153.50
  4. Step 4: Simplify right side
    87,984.66x = 6,332,252,145.35
  5. Step 5: Solve for x
    x = 6,332,252,145.35/87,984.66
  6. Step 6: Final answer
    x = 71,969.96

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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.