Home / 83,406.56-125,110.65-21,077.06

Finding the Fourth Proportional to 83,406.56, 125,110.65 and 21,077.06

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Solution

The fourth proportional to 83,406.56, 125,110.65 and 21,077.06 is: 31,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.56 : 125,110.65 = 21,077.06 : x
  2. Step 2: Convert to fraction form
    83,406.56/125,110.65 = 21,077.06/x
  3. Step 3: Cross multiply
    83,406.56x = 125,110.65 × 21,077.06
  4. Step 4: Simplify right side
    83,406.56x = 2,636,964,676.69
  5. Step 5: Solve for x
    x = 2,636,964,676.69/83,406.56
  6. Step 6: Final answer
    x = 31,615.79

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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.