Home / 87,005.40-130,505.71-27,840.22

Finding the Fourth Proportional to 87,005.40, 130,505.71 and 27,840.22

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Solution

The fourth proportional to 87,005.40, 130,505.71 and 27,840.22 is: 41,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005.40 : 130,505.71 = 27,840.22 : x
  2. Step 2: Convert to fraction form
    87,005.40/130,505.71 = 27,840.22/x
  3. Step 3: Cross multiply
    87,005.40x = 130,505.71 × 27,840.22
  4. Step 4: Simplify right side
    87,005.40x = 3,633,307,677.66
  5. Step 5: Solve for x
    x = 3,633,307,677.66/87,005.40
  6. Step 6: Final answer
    x = 41,759.57

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1.5x scale

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.