Home / 87,800.64-121,163.96-47,513.52

Finding the Fourth Proportional to 87,800.64, 121,163.96 and 47,513.52

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Solution

The fourth proportional to 87,800.64, 121,163.96 and 47,513.52 is: 65,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,800.64 : 121,163.96 = 47,513.52 : x
  2. Step 2: Convert to fraction form
    87,800.64/121,163.96 = 47,513.52/x
  3. Step 3: Cross multiply
    87,800.64x = 121,163.96 × 47,513.52
  4. Step 4: Simplify right side
    87,800.64x = 5,756,926,236.74
  5. Step 5: Solve for x
    x = 5,756,926,236.74/87,800.64
  6. Step 6: Final answer
    x = 65,568.16

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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.