Home / 86,816.85-130,265.79-30,699.46

Finding the Fourth Proportional to 86,816.85, 130,265.79 and 30,699.46

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Solution

The fourth proportional to 86,816.85, 130,265.79 and 30,699.46 is: 46,063.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,816.85 : 130,265.79 = 30,699.46 : x
  2. Step 2: Convert to fraction form
    86,816.85/130,265.79 = 30,699.46/x
  3. Step 3: Cross multiply
    86,816.85x = 130,265.79 × 30,699.46
  4. Step 4: Simplify right side
    86,816.85x = 3,999,089,409.47
  5. Step 5: Solve for x
    x = 3,999,089,409.47/86,816.85
  6. Step 6: Final answer
    x = 46,063.52

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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.