Home / 84,245.96-126,306.51-39,820.80

Finding the Fourth Proportional to 84,245.96, 126,306.51 and 39,820.80

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Solution

The fourth proportional to 84,245.96, 126,306.51 and 39,820.80 is: 59,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,245.96 : 126,306.51 = 39,820.80 : x
  2. Step 2: Convert to fraction form
    84,245.96/126,306.51 = 39,820.80/x
  3. Step 3: Cross multiply
    84,245.96x = 126,306.51 × 39,820.80
  4. Step 4: Simplify right side
    84,245.96x = 5,029,626,273.41
  5. Step 5: Solve for x
    x = 5,029,626,273.41/84,245.96
  6. Step 6: Final answer
    x = 59,701.69

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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.