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Finding the Fourth Proportional to 36,000.60, 54,000.90 and 28,127.40

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Solution

The fourth proportional to 36,000.60, 54,000.90 and 28,127.40 is: 42,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.60 : 54,000.90 = 28,127.40 : x
  2. Step 2: Convert to fraction form
    36,000.60/54,000.90 = 28,127.40/x
  3. Step 3: Cross multiply
    36,000.60x = 54,000.90 × 28,127.40
  4. Step 4: Simplify right side
    36,000.60x = 1,518,904,914.66
  5. Step 5: Solve for x
    x = 1,518,904,914.66/36,000.60
  6. Step 6: Final answer
    x = 42,191.10

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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.