Home / 85,086.24-127,614.32-31,766.26

Finding the Fourth Proportional to 85,086.24, 127,614.32 and 31,766.26

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Solution

The fourth proportional to 85,086.24, 127,614.32 and 31,766.26 is: 47,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,086.24 : 127,614.32 = 31,766.26 : x
  2. Step 2: Convert to fraction form
    85,086.24/127,614.32 = 31,766.26/x
  3. Step 3: Cross multiply
    85,086.24x = 127,614.32 × 31,766.26
  4. Step 4: Simplify right side
    85,086.24x = 4,053,829,668.84
  5. Step 5: Solve for x
    x = 4,053,829,668.84/85,086.24
  6. Step 6: Final answer
    x = 47,643.77

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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.