Home / 325,128.03-487,642.77-88,489.15

Finding the Fourth Proportional to 325,128.03, 487,642.77 and 88,489.15

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Solution

The fourth proportional to 325,128.03, 487,642.77 and 88,489.15 is: 132,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,128.03 : 487,642.77 = 88,489.15 : x
  2. Step 2: Convert to fraction form
    325,128.03/487,642.77 = 88,489.15/x
  3. Step 3: Cross multiply
    325,128.03x = 487,642.77 × 88,489.15
  4. Step 4: Simplify right side
    325,128.03x = 43,151,094,220.95
  5. Step 5: Solve for x
    x = 43,151,094,220.95/325,128.03
  6. Step 6: Final answer
    x = 132,720.31

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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.