Home / 87,930.84-121,346.82-53,958.10

Finding the Fourth Proportional to 87,930.84, 121,346.82 and 53,958.10

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Solution

The fourth proportional to 87,930.84, 121,346.82 and 53,958.10 is: 74,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,930.84 : 121,346.82 = 53,958.10 : x
  2. Step 2: Convert to fraction form
    87,930.84/121,346.82 = 53,958.10/x
  3. Step 3: Cross multiply
    87,930.84x = 121,346.82 × 53,958.10
  4. Step 4: Simplify right side
    87,930.84x = 6,547,643,409.98
  5. Step 5: Solve for x
    x = 6,547,643,409.98/87,930.84
  6. Step 6: Final answer
    x = 74,463.56

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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.