Home / 43,000.20-64,518.48-20,830.05

Finding the Fourth Proportional to 43,000.20, 64,518.48 and 20,830.05

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Solution

The fourth proportional to 43,000.20, 64,518.48 and 20,830.05 is: 31,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,000.20 : 64,518.48 = 20,830.05 : x
  2. Step 2: Convert to fraction form
    43,000.20/64,518.48 = 20,830.05/x
  3. Step 3: Cross multiply
    43,000.20x = 64,518.48 × 20,830.05
  4. Step 4: Simplify right side
    43,000.20x = 1,343,923,164.32
  5. Step 5: Solve for x
    x = 1,343,923,164.32/43,000.20
  6. Step 6: Final answer
    x = 31,253.88

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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.