Home / 82,912.09-114,417.70-48,920.64

Finding the Fourth Proportional to 82,912.09, 114,417.70 and 48,920.64

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Solution

The fourth proportional to 82,912.09, 114,417.70 and 48,920.64 is: 67,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,912.09 : 114,417.70 = 48,920.64 : x
  2. Step 2: Convert to fraction form
    82,912.09/114,417.70 = 48,920.64/x
  3. Step 3: Cross multiply
    82,912.09x = 114,417.70 × 48,920.64
  4. Step 4: Simplify right side
    82,912.09x = 5,597,387,111.33
  5. Step 5: Solve for x
    x = 5,597,387,111.33/82,912.09
  6. Step 6: Final answer
    x = 67,509.90

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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.