Home / 81,833.54-112,913.35-47,835.45

Finding the Fourth Proportional to 81,833.54, 112,913.35 and 47,835.45

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Solution

The fourth proportional to 81,833.54, 112,913.35 and 47,835.45 is: 66,003.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,833.54 : 112,913.35 = 47,835.45 : x
  2. Step 2: Convert to fraction form
    81,833.54/112,913.35 = 47,835.45/x
  3. Step 3: Cross multiply
    81,833.54x = 112,913.35 × 47,835.45
  4. Step 4: Simplify right side
    81,833.54x = 5,401,260,908.26
  5. Step 5: Solve for x
    x = 5,401,260,908.26/81,833.54
  6. Step 6: Final answer
    x = 66,003.02

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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.