Home / 84,782.20-127,173.30-25,611.70

Finding the Fourth Proportional to 84,782.20, 127,173.30 and 25,611.70

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Solution

The fourth proportional to 84,782.20, 127,173.30 and 25,611.70 is: 38,417.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,782.20 : 127,173.30 = 25,611.70 : x
  2. Step 2: Convert to fraction form
    84,782.20/127,173.30 = 25,611.70/x
  3. Step 3: Cross multiply
    84,782.20x = 127,173.30 × 25,611.70
  4. Step 4: Simplify right side
    84,782.20x = 3,257,124,407.61
  5. Step 5: Solve for x
    x = 3,257,124,407.61/84,782.20
  6. Step 6: Final answer
    x = 38,417.55

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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.