Home / 82,338.78-113,628.40-48,347.68

Finding the Fourth Proportional to 82,338.78, 113,628.40 and 48,347.68

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Solution

The fourth proportional to 82,338.78, 113,628.40 and 48,347.68 is: 66,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,338.78 : 113,628.40 = 48,347.68 : x
  2. Step 2: Convert to fraction form
    82,338.78/113,628.40 = 48,347.68/x
  3. Step 3: Cross multiply
    82,338.78x = 113,628.40 × 48,347.68
  4. Step 4: Simplify right side
    82,338.78x = 5,493,669,573.28
  5. Step 5: Solve for x
    x = 5,493,669,573.28/82,338.78
  6. Step 6: Final answer
    x = 66,720.31

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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.