Home / 87,759.52-121,108.24-47,473.20

Finding the Fourth Proportional to 87,759.52, 121,108.24 and 47,473.20

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Solution

The fourth proportional to 87,759.52, 121,108.24 and 47,473.20 is: 65,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,759.52 : 121,108.24 = 47,473.20 : x
  2. Step 2: Convert to fraction form
    87,759.52/121,108.24 = 47,473.20/x
  3. Step 3: Cross multiply
    87,759.52x = 121,108.24 × 47,473.20
  4. Step 4: Simplify right side
    87,759.52x = 5,749,395,699.17
  5. Step 5: Solve for x
    x = 5,749,395,699.17/87,759.52
  6. Step 6: Final answer
    x = 65,513.07

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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.