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Finding the Fourth Proportional to 60,333.66, 90,512.64 and 20,889.90

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Solution

The fourth proportional to 60,333.66, 90,512.64 and 20,889.90 is: 31,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,333.66 : 90,512.64 = 20,889.90 : x
  2. Step 2: Convert to fraction form
    60,333.66/90,512.64 = 20,889.90/x
  3. Step 3: Cross multiply
    60,333.66x = 90,512.64 × 20,889.90
  4. Step 4: Simplify right side
    60,333.66x = 1,890,799,998.34
  5. Step 5: Solve for x
    x = 1,890,799,998.34/60,333.66
  6. Step 6: Final answer
    x = 31,339.06

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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.