Home / 87,740.82-121,026.56-57,528.09

Finding the Fourth Proportional to 87,740.82, 121,026.56 and 57,528.09

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Solution

The fourth proportional to 87,740.82, 121,026.56 and 57,528.09 is: 79,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.82 : 121,026.56 = 57,528.09 : x
  2. Step 2: Convert to fraction form
    87,740.82/121,026.56 = 57,528.09/x
  3. Step 3: Cross multiply
    87,740.82x = 121,026.56 × 57,528.09
  4. Step 4: Simplify right side
    87,740.82x = 6,962,426,548.43
  5. Step 5: Solve for x
    x = 6,962,426,548.43/87,740.82
  6. Step 6: Final answer
    x = 79,352.19

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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.