Home / 87,913.41-121,313.28-49,676.28

Finding the Fourth Proportional to 87,913.41, 121,313.28 and 49,676.28

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Solution

The fourth proportional to 87,913.41, 121,313.28 and 49,676.28 is: 68,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.41 : 121,313.28 = 49,676.28 : x
  2. Step 2: Convert to fraction form
    87,913.41/121,313.28 = 49,676.28/x
  3. Step 3: Cross multiply
    87,913.41x = 121,313.28 × 49,676.28
  4. Step 4: Simplify right side
    87,913.41x = 6,026,392,465.00
  5. Step 5: Solve for x
    x = 6,026,392,465.00/87,913.41
  6. Step 6: Final answer
    x = 68,549.18

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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.