Home / 83,701.06-125,551.80-20,521.47

Finding the Fourth Proportional to 83,701.06, 125,551.80 and 20,521.47

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Solution

The fourth proportional to 83,701.06, 125,551.80 and 20,521.47 is: 30,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,701.06 : 125,551.80 = 20,521.47 : x
  2. Step 2: Convert to fraction form
    83,701.06/125,551.80 = 20,521.47/x
  3. Step 3: Cross multiply
    83,701.06x = 125,551.80 × 20,521.47
  4. Step 4: Simplify right side
    83,701.06x = 2,576,507,497.15
  5. Step 5: Solve for x
    x = 2,576,507,497.15/83,701.06
  6. Step 6: Final answer
    x = 30,782.26

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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.