Home / 87,760.14-121,108.83-47,473.77

Finding the Fourth Proportional to 87,760.14, 121,108.83 and 47,473.77

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Solution

The fourth proportional to 87,760.14, 121,108.83 and 47,473.77 is: 65,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,760.14 : 121,108.83 = 47,473.77 : x
  2. Step 2: Convert to fraction form
    87,760.14/121,108.83 = 47,473.77/x
  3. Step 3: Cross multiply
    87,760.14x = 121,108.83 × 47,473.77
  4. Step 4: Simplify right side
    87,760.14x = 5,749,492,740.39
  5. Step 5: Solve for x
    x = 5,749,492,740.39/87,760.14
  6. Step 6: Final answer
    x = 65,513.71

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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.