Home / 81,834.47-112,914.64-47,836.39

Finding the Fourth Proportional to 81,834.47, 112,914.64 and 47,836.39

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Solution

The fourth proportional to 81,834.47, 112,914.64 and 47,836.39 is: 66,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,834.47 : 112,914.64 = 47,836.39 : x
  2. Step 2: Convert to fraction form
    81,834.47/112,914.64 = 47,836.39/x
  3. Step 3: Cross multiply
    81,834.47x = 112,914.64 × 47,836.39
  4. Step 4: Simplify right side
    81,834.47x = 5,401,428,353.87
  5. Step 5: Solve for x
    x = 5,401,428,353.87/81,834.47
  6. Step 6: Final answer
    x = 66,004.32

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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.