Home / 86,478.20-119,321.72-52,504.54

Finding the Fourth Proportional to 86,478.20, 119,321.72 and 52,504.54

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Solution

The fourth proportional to 86,478.20, 119,321.72 and 52,504.54 is: 72,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,478.20 : 119,321.72 = 52,504.54 : x
  2. Step 2: Convert to fraction form
    86,478.20/119,321.72 = 52,504.54/x
  3. Step 3: Cross multiply
    86,478.20x = 119,321.72 × 52,504.54
  4. Step 4: Simplify right side
    86,478.20x = 6,264,932,020.61
  5. Step 5: Solve for x
    x = 6,264,932,020.61/86,478.20
  6. Step 6: Final answer
    x = 72,445.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.