Home / 84,685.47-127,028.24-21,510.33

Finding the Fourth Proportional to 84,685.47, 127,028.24 and 21,510.33

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Solution

The fourth proportional to 84,685.47, 127,028.24 and 21,510.33 is: 32,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.47 : 127,028.24 = 21,510.33 : x
  2. Step 2: Convert to fraction form
    84,685.47/127,028.24 = 21,510.33/x
  3. Step 3: Cross multiply
    84,685.47x = 127,028.24 × 21,510.33
  4. Step 4: Simplify right side
    84,685.47x = 2,732,419,361.72
  5. Step 5: Solve for x
    x = 2,732,419,361.72/84,685.47
  6. Step 6: Final answer
    x = 32,265.50

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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.