Home / 52,731.81-79,096.80-13,288.05

Finding the Fourth Proportional to 52,731.81, 79,096.80 and 13,288.05

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Solution

The fourth proportional to 52,731.81, 79,096.80 and 13,288.05 is: 19,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,731.81 : 79,096.80 = 13,288.05 : x
  2. Step 2: Convert to fraction form
    52,731.81/79,096.80 = 13,288.05/x
  3. Step 3: Cross multiply
    52,731.81x = 79,096.80 × 13,288.05
  4. Step 4: Simplify right side
    52,731.81x = 1,051,042,233.24
  5. Step 5: Solve for x
    x = 1,051,042,233.24/52,731.81
  6. Step 6: Final answer
    x = 19,931.84

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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.