Home / 87,467.40-131,169-31,292.28

Finding the Fourth Proportional to 87,467.40, 131,169 and 31,292.28

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Solution

The fourth proportional to 87,467.40, 131,169 and 31,292.28 is: 46,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,467.40 : 131,169 = 31,292.28 : x
  2. Step 2: Convert to fraction form
    87,467.40/131,169 = 31,292.28/x
  3. Step 3: Cross multiply
    87,467.40x = 131,169 × 31,292.28
  4. Step 4: Simplify right side
    87,467.40x = 4,104,577,075.32
  5. Step 5: Solve for x
    x = 4,104,577,075.32/87,467.40
  6. Step 6: Final answer
    x = 46,926.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.