Home / 87,907.51-121,234.21-69,011.83

Finding the Fourth Proportional to 87,907.51, 121,234.21 and 69,011.83

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Solution

The fourth proportional to 87,907.51, 121,234.21 and 69,011.83 is: 95,174.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,907.51 : 121,234.21 = 69,011.83 : x
  2. Step 2: Convert to fraction form
    87,907.51/121,234.21 = 69,011.83/x
  3. Step 3: Cross multiply
    87,907.51x = 121,234.21 × 69,011.83
  4. Step 4: Simplify right side
    87,907.51x = 8,366,594,690.70
  5. Step 5: Solve for x
    x = 8,366,594,690.70/87,907.51
  6. Step 6: Final answer
    x = 95,174.97

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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.