Home / 87,137.56-120,286.47-58,881.52

Finding the Fourth Proportional to 87,137.56, 120,286.47 and 58,881.52

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Solution

The fourth proportional to 87,137.56, 120,286.47 and 58,881.52 is: 81,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,137.56 : 120,286.47 = 58,881.52 : x
  2. Step 2: Convert to fraction form
    87,137.56/120,286.47 = 58,881.52/x
  3. Step 3: Cross multiply
    87,137.56x = 120,286.47 × 58,881.52
  4. Step 4: Simplify right side
    87,137.56x = 7,082,650,189.03
  5. Step 5: Solve for x
    x = 7,082,650,189.03/87,137.56
  6. Step 6: Final answer
    x = 81,281.25

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1.5x scale

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.