Home / 52,731.68-79,091.66-13,288.80

Finding the Fourth Proportional to 52,731.68, 79,091.66 and 13,288.80

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Solution

The fourth proportional to 52,731.68, 79,091.66 and 13,288.80 is: 19,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,731.68 : 79,091.66 = 13,288.80 : x
  2. Step 2: Convert to fraction form
    52,731.68/79,091.66 = 13,288.80/x
  3. Step 3: Cross multiply
    52,731.68x = 79,091.66 × 13,288.80
  4. Step 4: Simplify right side
    52,731.68x = 1,051,033,251.41
  5. Step 5: Solve for x
    x = 1,051,033,251.41/52,731.68
  6. Step 6: Final answer
    x = 19,931.72

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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.