Home / 57,435.36-86,146.20-15,318.60

Finding the Fourth Proportional to 57,435.36, 86,146.20 and 15,318.60

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Solution

The fourth proportional to 57,435.36, 86,146.20 and 15,318.60 is: 22,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,435.36 : 86,146.20 = 15,318.60 : x
  2. Step 2: Convert to fraction form
    57,435.36/86,146.20 = 15,318.60/x
  3. Step 3: Cross multiply
    57,435.36x = 86,146.20 × 15,318.60
  4. Step 4: Simplify right side
    57,435.36x = 1,319,639,179.32
  5. Step 5: Solve for x
    x = 1,319,639,179.32/57,435.36
  6. Step 6: Final answer
    x = 22,976.08

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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.