Home / 84,912.10-127,380.30-25,752.40

Finding the Fourth Proportional to 84,912.10, 127,380.30 and 25,752.40

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Solution

The fourth proportional to 84,912.10, 127,380.30 and 25,752.40 is: 38,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,912.10 : 127,380.30 = 25,752.40 : x
  2. Step 2: Convert to fraction form
    84,912.10/127,380.30 = 25,752.40/x
  3. Step 3: Cross multiply
    84,912.10x = 127,380.30 × 25,752.40
  4. Step 4: Simplify right side
    84,912.10x = 3,280,348,437.72
  5. Step 5: Solve for x
    x = 3,280,348,437.72/84,912.10
  6. Step 6: Final answer
    x = 38,632.28

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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.