Home / 87,705.88-131,526.16-31,530.66

Finding the Fourth Proportional to 87,705.88, 131,526.16 and 31,530.66

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Solution

The fourth proportional to 87,705.88, 131,526.16 and 31,530.66 is: 47,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,705.88 : 131,526.16 = 31,530.66 : x
  2. Step 2: Convert to fraction form
    87,705.88/131,526.16 = 31,530.66/x
  3. Step 3: Cross multiply
    87,705.88x = 131,526.16 × 31,530.66
  4. Step 4: Simplify right side
    87,705.88x = 4,147,106,632.07
  5. Step 5: Solve for x
    x = 4,147,106,632.07/87,705.88
  6. Step 6: Final answer
    x = 47,284.25

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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.