Home / 86,979.69-130,417.16-47,481.93

Finding the Fourth Proportional to 86,979.69, 130,417.16 and 47,481.93

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Solution

The fourth proportional to 86,979.69, 130,417.16 and 47,481.93 is: 71,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,979.69 : 130,417.16 = 47,481.93 : x
  2. Step 2: Convert to fraction form
    86,979.69/130,417.16 = 47,481.93/x
  3. Step 3: Cross multiply
    86,979.69x = 130,417.16 × 47,481.93
  4. Step 4: Simplify right side
    86,979.69x = 6,192,458,224.51
  5. Step 5: Solve for x
    x = 6,192,458,224.51/86,979.69
  6. Step 6: Final answer
    x = 71,194.30

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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.