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Finding the Fourth Proportional to 55,019.70, 82,529.55 and 51,301.80

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Solution

The fourth proportional to 55,019.70, 82,529.55 and 51,301.80 is: 76,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,019.70 : 82,529.55 = 51,301.80 : x
  2. Step 2: Convert to fraction form
    55,019.70/82,529.55 = 51,301.80/x
  3. Step 3: Cross multiply
    55,019.70x = 82,529.55 × 51,301.80
  4. Step 4: Simplify right side
    55,019.70x = 4,233,914,468.19
  5. Step 5: Solve for x
    x = 4,233,914,468.19/55,019.70
  6. Step 6: Final answer
    x = 76,952.70

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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.