Home / 46,789.12-70,118.08-20,439.04

Finding the Fourth Proportional to 46,789.12, 70,118.08 and 20,439.04

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Solution

The fourth proportional to 46,789.12, 70,118.08 and 20,439.04 is: 30,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,789.12 : 70,118.08 = 20,439.04 : x
  2. Step 2: Convert to fraction form
    46,789.12/70,118.08 = 20,439.04/x
  3. Step 3: Cross multiply
    46,789.12x = 70,118.08 × 20,439.04
  4. Step 4: Simplify right side
    46,789.12x = 1,433,146,241.84
  5. Step 5: Solve for x
    x = 1,433,146,241.84/46,789.12
  6. Step 6: Final answer
    x = 30,629.90

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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.