Home / 52,311.79-72,189.42-28,439.06

Finding the Fourth Proportional to 52,311.79, 72,189.42 and 28,439.06

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Solution

The fourth proportional to 52,311.79, 72,189.42 and 28,439.06 is: 39,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,311.79 : 72,189.42 = 28,439.06 : x
  2. Step 2: Convert to fraction form
    52,311.79/72,189.42 = 28,439.06/x
  3. Step 3: Cross multiply
    52,311.79x = 72,189.42 × 28,439.06
  4. Step 4: Simplify right side
    52,311.79x = 2,052,999,246.75
  5. Step 5: Solve for x
    x = 2,052,999,246.75/52,311.79
  6. Step 6: Final answer
    x = 39,245.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.