Home / 87,845.43-121,225.77-47,558.46

Finding the Fourth Proportional to 87,845.43, 121,225.77 and 47,558.46

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Solution

The fourth proportional to 87,845.43, 121,225.77 and 47,558.46 is: 65,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.43 : 121,225.77 = 47,558.46 : x
  2. Step 2: Convert to fraction form
    87,845.43/121,225.77 = 47,558.46/x
  3. Step 3: Cross multiply
    87,845.43x = 121,225.77 × 47,558.46
  4. Step 4: Simplify right side
    87,845.43x = 5,765,310,933.51
  5. Step 5: Solve for x
    x = 5,765,310,933.51/87,845.43
  6. Step 6: Final answer
    x = 65,630.17

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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.