Home / 87,476.22-130,531.86-78,051.48

Finding the Fourth Proportional to 87,476.22, 130,531.86 and 78,051.48

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Solution

The fourth proportional to 87,476.22, 130,531.86 and 78,051.48 is: 116,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.22 : 130,531.86 = 78,051.48 : x
  2. Step 2: Convert to fraction form
    87,476.22/130,531.86 = 78,051.48/x
  3. Step 3: Cross multiply
    87,476.22x = 130,531.86 × 78,051.48
  4. Step 4: Simplify right side
    87,476.22x = 10,188,204,860.15
  5. Step 5: Solve for x
    x = 10,188,204,860.15/87,476.22
  6. Step 6: Final answer
    x = 116,468.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.