Home / 87,228.42-120,420.94-58,698.09

Finding the Fourth Proportional to 87,228.42, 120,420.94 and 58,698.09

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Solution

The fourth proportional to 87,228.42, 120,420.94 and 58,698.09 is: 81,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,228.42 : 120,420.94 = 58,698.09 : x
  2. Step 2: Convert to fraction form
    87,228.42/120,420.94 = 58,698.09/x
  3. Step 3: Cross multiply
    87,228.42x = 120,420.94 × 58,698.09
  4. Step 4: Simplify right side
    87,228.42x = 7,068,479,174.00
  5. Step 5: Solve for x
    x = 7,068,479,174.00/87,228.42
  6. Step 6: Final answer
    x = 81,034.13

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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.