Home / 84,949.32-127,425.74-30,912.15

Finding the Fourth Proportional to 84,949.32, 127,425.74 and 30,912.15

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Solution

The fourth proportional to 84,949.32, 127,425.74 and 30,912.15 is: 46,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,949.32 : 127,425.74 = 30,912.15 : x
  2. Step 2: Convert to fraction form
    84,949.32/127,425.74 = 30,912.15/x
  3. Step 3: Cross multiply
    84,949.32x = 127,425.74 × 30,912.15
  4. Step 4: Simplify right side
    84,949.32x = 3,939,003,434.18
  5. Step 5: Solve for x
    x = 3,939,003,434.18/84,949.32
  6. Step 6: Final answer
    x = 46,368.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.