Home / 51,780.35-71,459.46-29,126.47

Finding the Fourth Proportional to 51,780.35, 71,459.46 and 29,126.47

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Solution

The fourth proportional to 51,780.35, 71,459.46 and 29,126.47 is: 40,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780.35 : 71,459.46 = 29,126.47 : x
  2. Step 2: Convert to fraction form
    51,780.35/71,459.46 = 29,126.47/x
  3. Step 3: Cross multiply
    51,780.35x = 71,459.46 × 29,126.47
  4. Step 4: Simplify right side
    51,780.35x = 2,081,361,817.91
  5. Step 5: Solve for x
    x = 2,081,361,817.91/51,780.35
  6. Step 6: Final answer
    x = 40,195.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.