Home / 52,515.72-78,785.30-19,235.08

Finding the Fourth Proportional to 52,515.72, 78,785.30 and 19,235.08

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Solution

The fourth proportional to 52,515.72, 78,785.30 and 19,235.08 is: 28,856.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,515.72 : 78,785.30 = 19,235.08 : x
  2. Step 2: Convert to fraction form
    52,515.72/78,785.30 = 19,235.08/x
  3. Step 3: Cross multiply
    52,515.72x = 78,785.30 × 19,235.08
  4. Step 4: Simplify right side
    52,515.72x = 1,515,441,548.32
  5. Step 5: Solve for x
    x = 1,515,441,548.32/52,515.72
  6. Step 6: Final answer
    x = 28,856.91

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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.