Home / 60,084.72-90,133.20-20,636.72

Finding the Fourth Proportional to 60,084.72, 90,133.20 and 20,636.72

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Solution

The fourth proportional to 60,084.72, 90,133.20 and 20,636.72 is: 30,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,084.72 : 90,133.20 = 20,636.72 : x
  2. Step 2: Convert to fraction form
    60,084.72/90,133.20 = 20,636.72/x
  3. Step 3: Cross multiply
    60,084.72x = 90,133.20 × 20,636.72
  4. Step 4: Simplify right side
    60,084.72x = 1,860,053,611.10
  5. Step 5: Solve for x
    x = 1,860,053,611.10/60,084.72
  6. Step 6: Final answer
    x = 30,957.18

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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.