Home / 84,000.26-125,998.77-20,820.52

Finding the Fourth Proportional to 84,000.26, 125,998.77 and 20,820.52

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Solution

The fourth proportional to 84,000.26, 125,998.77 and 20,820.52 is: 31,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,000.26 : 125,998.77 = 20,820.52 : x
  2. Step 2: Convert to fraction form
    84,000.26/125,998.77 = 20,820.52/x
  3. Step 3: Cross multiply
    84,000.26x = 125,998.77 × 20,820.52
  4. Step 4: Simplify right side
    84,000.26x = 2,623,359,437.59
  5. Step 5: Solve for x
    x = 2,623,359,437.59/84,000.26
  6. Step 6: Final answer
    x = 31,230.37

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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.