Home / 86,838.32-130,189.43-34,287.14

Finding the Fourth Proportional to 86,838.32, 130,189.43 and 34,287.14

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Solution

The fourth proportional to 86,838.32, 130,189.43 and 34,287.14 is: 51,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,838.32 : 130,189.43 = 34,287.14 : x
  2. Step 2: Convert to fraction form
    86,838.32/130,189.43 = 34,287.14/x
  3. Step 3: Cross multiply
    86,838.32x = 130,189.43 × 34,287.14
  4. Step 4: Simplify right side
    86,838.32x = 4,463,823,212.93
  5. Step 5: Solve for x
    x = 4,463,823,212.93/86,838.32
  6. Step 6: Final answer
    x = 51,403.84

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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.