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Finding the Fourth Proportional to 60,392.75, 90,566.43 and 20,940.35

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Solution

The fourth proportional to 60,392.75, 90,566.43 and 20,940.35 is: 31,402.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,392.75 : 90,566.43 = 20,940.35 : x
  2. Step 2: Convert to fraction form
    60,392.75/90,566.43 = 20,940.35/x
  3. Step 3: Cross multiply
    60,392.75x = 90,566.43 × 20,940.35
  4. Step 4: Simplify right side
    60,392.75x = 1,896,492,289.62
  5. Step 5: Solve for x
    x = 1,896,492,289.62/60,392.75
  6. Step 6: Final answer
    x = 31,402.65

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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.