Home / 81,226.57-112,047.65-47,231.31

Finding the Fourth Proportional to 81,226.57, 112,047.65 and 47,231.31

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Solution

The fourth proportional to 81,226.57, 112,047.65 and 47,231.31 is: 65,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,226.57 : 112,047.65 = 47,231.31 : x
  2. Step 2: Convert to fraction form
    81,226.57/112,047.65 = 47,231.31/x
  3. Step 3: Cross multiply
    81,226.57x = 112,047.65 × 47,231.31
  4. Step 4: Simplify right side
    81,226.57x = 5,292,157,055.76
  5. Step 5: Solve for x
    x = 5,292,157,055.76/81,226.57
  6. Step 6: Final answer
    x = 65,153.03

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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.