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Finding the Fourth Proportional to 52,690.32, 72,712.71 and 30,028.32

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Solution

The fourth proportional to 52,690.32, 72,712.71 and 30,028.32 is: 41,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,690.32 : 72,712.71 = 30,028.32 : x
  2. Step 2: Convert to fraction form
    52,690.32/72,712.71 = 30,028.32/x
  3. Step 3: Cross multiply
    52,690.32x = 72,712.71 × 30,028.32
  4. Step 4: Simplify right side
    52,690.32x = 2,183,440,523.95
  5. Step 5: Solve for x
    x = 2,183,440,523.95/52,690.32
  6. Step 6: Final answer
    x = 41,439.12

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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.