Home / 81,914.64-113,041.08-47,946.48

Finding the Fourth Proportional to 81,914.64, 113,041.08 and 47,946.48

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Solution

The fourth proportional to 81,914.64, 113,041.08 and 47,946.48 is: 66,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.64 : 113,041.08 = 47,946.48 : x
  2. Step 2: Convert to fraction form
    81,914.64/113,041.08 = 47,946.48/x
  3. Step 3: Cross multiply
    81,914.64x = 113,041.08 × 47,946.48
  4. Step 4: Simplify right side
    81,914.64x = 5,419,921,881.40
  5. Step 5: Solve for x
    x = 5,419,921,881.40/81,914.64
  6. Step 6: Final answer
    x = 66,165.48

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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.