Home / 86,688.39-130,020.83-23,512.58

Finding the Fourth Proportional to 86,688.39, 130,020.83 and 23,512.58

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Solution

The fourth proportional to 86,688.39, 130,020.83 and 23,512.58 is: 35,265.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,688.39 : 130,020.83 = 23,512.58 : x
  2. Step 2: Convert to fraction form
    86,688.39/130,020.83 = 23,512.58/x
  3. Step 3: Cross multiply
    86,688.39x = 130,020.83 × 23,512.58
  4. Step 4: Simplify right side
    86,688.39x = 3,057,124,975.12
  5. Step 5: Solve for x
    x = 3,057,124,975.12/86,688.39
  6. Step 6: Final answer
    x = 35,265.68

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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.