Home / 86,860.92-130,509.18-55,284.60

Finding the Fourth Proportional to 86,860.92, 130,509.18 and 55,284.60

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Solution

The fourth proportional to 86,860.92, 130,509.18 and 55,284.60 is: 83,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.92 : 130,509.18 = 55,284.60 : x
  2. Step 2: Convert to fraction form
    86,860.92/130,509.18 = 55,284.60/x
  3. Step 3: Cross multiply
    86,860.92x = 130,509.18 × 55,284.60
  4. Step 4: Simplify right side
    86,860.92x = 7,215,147,812.63
  5. Step 5: Solve for x
    x = 7,215,147,812.63/86,860.92
  6. Step 6: Final answer
    x = 83,065.52

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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.