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Finding the Fourth Proportional to 55,489.80, 83,234.70 and 37,775.10

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Solution

The fourth proportional to 55,489.80, 83,234.70 and 37,775.10 is: 56,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,489.80 : 83,234.70 = 37,775.10 : x
  2. Step 2: Convert to fraction form
    55,489.80/83,234.70 = 37,775.10/x
  3. Step 3: Cross multiply
    55,489.80x = 83,234.70 × 37,775.10
  4. Step 4: Simplify right side
    55,489.80x = 3,144,199,115.97
  5. Step 5: Solve for x
    x = 3,144,199,115.97/55,489.80
  6. Step 6: Final answer
    x = 56,662.65

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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.