Home / 52,311.81-72,190.12-28,438.32

Finding the Fourth Proportional to 52,311.81, 72,190.12 and 28,438.32

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Solution

The fourth proportional to 52,311.81, 72,190.12 and 28,438.32 is: 39,244.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,311.81 : 72,190.12 = 28,438.32 : x
  2. Step 2: Convert to fraction form
    52,311.81/72,190.12 = 28,438.32/x
  3. Step 3: Cross multiply
    52,311.81x = 72,190.12 × 28,438.32
  4. Step 4: Simplify right side
    52,311.81x = 2,052,965,733.40
  5. Step 5: Solve for x
    x = 2,052,965,733.40/52,311.81
  6. Step 6: Final answer
    x = 39,244.78

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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.