Home / 87,146.58-130,693.62-30,979.26

Finding the Fourth Proportional to 87,146.58, 130,693.62 and 30,979.26

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Solution

The fourth proportional to 87,146.58, 130,693.62 and 30,979.26 is: 46,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,146.58 : 130,693.62 = 30,979.26 : x
  2. Step 2: Convert to fraction form
    87,146.58/130,693.62 = 30,979.26/x
  3. Step 3: Cross multiply
    87,146.58x = 130,693.62 × 30,979.26
  4. Step 4: Simplify right side
    87,146.58x = 4,048,791,634.32
  5. Step 5: Solve for x
    x = 4,048,791,634.32/87,146.58
  6. Step 6: Final answer
    x = 46,459.56

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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.