Home / 86,769.48-130,186.61-34,215.60

Finding the Fourth Proportional to 86,769.48, 130,186.61 and 34,215.60

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Solution

The fourth proportional to 86,769.48, 130,186.61 and 34,215.60 is: 51,336.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,769.48 : 130,186.61 = 34,215.60 : x
  2. Step 2: Convert to fraction form
    86,769.48/130,186.61 = 34,215.60/x
  3. Step 3: Cross multiply
    86,769.48x = 130,186.61 × 34,215.60
  4. Step 4: Simplify right side
    86,769.48x = 4,454,412,973.12
  5. Step 5: Solve for x
    x = 4,454,412,973.12/86,769.48
  6. Step 6: Final answer
    x = 51,336.17

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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.