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Finding the Fourth Proportional to 52,000.21, 78,010.04 and 20,837.89

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Solution

The fourth proportional to 52,000.21, 78,010.04 and 20,837.89 is: 31,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,000.21 : 78,010.04 = 20,837.89 : x
  2. Step 2: Convert to fraction form
    52,000.21/78,010.04 = 20,837.89/x
  3. Step 3: Cross multiply
    52,000.21x = 78,010.04 × 20,837.89
  4. Step 4: Simplify right side
    52,000.21x = 1,625,564,632.42
  5. Step 5: Solve for x
    x = 1,625,564,632.42/52,000.21
  6. Step 6: Final answer
    x = 31,260.73

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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.