Home / 87,290.88-120,458.03-53,356.19

Finding the Fourth Proportional to 87,290.88, 120,458.03 and 53,356.19

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Solution

The fourth proportional to 87,290.88, 120,458.03 and 53,356.19 is: 73,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,290.88 : 120,458.03 = 53,356.19 : x
  2. Step 2: Convert to fraction form
    87,290.88/120,458.03 = 53,356.19/x
  3. Step 3: Cross multiply
    87,290.88x = 120,458.03 × 53,356.19
  4. Step 4: Simplify right side
    87,290.88x = 6,427,180,666.63
  5. Step 5: Solve for x
    x = 6,427,180,666.63/87,290.88
  6. Step 6: Final answer
    x = 73,629.46

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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.