Home / 86,257.28-129,282.24-46,812.80

Finding the Fourth Proportional to 86,257.28, 129,282.24 and 46,812.80

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Solution

The fourth proportional to 86,257.28, 129,282.24 and 46,812.80 is: 70,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,257.28 : 129,282.24 = 46,812.80 : x
  2. Step 2: Convert to fraction form
    86,257.28/129,282.24 = 46,812.80/x
  3. Step 3: Cross multiply
    86,257.28x = 129,282.24 × 46,812.80
  4. Step 4: Simplify right side
    86,257.28x = 6,052,063,644.67
  5. Step 5: Solve for x
    x = 6,052,063,644.67/86,257.28
  6. Step 6: Final answer
    x = 70,162.93

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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.