Home / 84,685.56-127,028.38-21,510.42

Finding the Fourth Proportional to 84,685.56, 127,028.38 and 21,510.42

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Solution

The fourth proportional to 84,685.56, 127,028.38 and 21,510.42 is: 32,265.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.56 : 127,028.38 = 21,510.42 : x
  2. Step 2: Convert to fraction form
    84,685.56/127,028.38 = 21,510.42/x
  3. Step 3: Cross multiply
    84,685.56x = 127,028.38 × 21,510.42
  4. Step 4: Simplify right side
    84,685.56x = 2,732,433,170.58
  5. Step 5: Solve for x
    x = 2,732,433,170.58/84,685.56
  6. Step 6: Final answer
    x = 32,265.63

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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.