Home / 74,185.96-102,320.78-51,524.98

Finding the Fourth Proportional to 74,185.96, 102,320.78 and 51,524.98

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Solution

The fourth proportional to 74,185.96, 102,320.78 and 51,524.98 is: 71,065.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,185.96 : 102,320.78 = 51,524.98 : x
  2. Step 2: Convert to fraction form
    74,185.96/102,320.78 = 51,524.98/x
  3. Step 3: Cross multiply
    74,185.96x = 102,320.78 × 51,524.98
  4. Step 4: Simplify right side
    74,185.96x = 5,272,076,143.08
  5. Step 5: Solve for x
    x = 5,272,076,143.08/74,185.96
  6. Step 6: Final answer
    x = 71,065.69

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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.