Home / 84,042.27-115,971.12-48,231.50

Finding the Fourth Proportional to 84,042.27, 115,971.12 and 48,231.50

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Solution

The fourth proportional to 84,042.27, 115,971.12 and 48,231.50 is: 66,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.27 : 115,971.12 = 48,231.50 : x
  2. Step 2: Convert to fraction form
    84,042.27/115,971.12 = 48,231.50/x
  3. Step 3: Cross multiply
    84,042.27x = 115,971.12 × 48,231.50
  4. Step 4: Simplify right side
    84,042.27x = 5,593,460,494.42
  5. Step 5: Solve for x
    x = 5,593,460,494.42/84,042.27
  6. Step 6: Final answer
    x = 66,555.32

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1.5x scale

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.