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Finding the Fourth Proportional to 60,392.32, 90,571.20 and 18,828.16

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Solution

The fourth proportional to 60,392.32, 90,571.20 and 18,828.16 is: 28,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,392.32 : 90,571.20 = 18,828.16 : x
  2. Step 2: Convert to fraction form
    60,392.32/90,571.20 = 18,828.16/x
  3. Step 3: Cross multiply
    60,392.32x = 90,571.20 × 18,828.16
  4. Step 4: Simplify right side
    60,392.32x = 1,705,289,044.99
  5. Step 5: Solve for x
    x = 1,705,289,044.99/60,392.32
  6. Step 6: Final answer
    x = 28,236.85

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1.5x scale

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.