Home / 56,548.30-84,768.45-21,000.10

Finding the Fourth Proportional to 56,548.30, 84,768.45 and 21,000.10

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Solution

The fourth proportional to 56,548.30, 84,768.45 and 21,000.10 is: 31,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,548.30 : 84,768.45 = 21,000.10 : x
  2. Step 2: Convert to fraction form
    56,548.30/84,768.45 = 21,000.10/x
  3. Step 3: Cross multiply
    56,548.30x = 84,768.45 × 21,000.10
  4. Step 4: Simplify right side
    56,548.30x = 1,780,145,926.85
  5. Step 5: Solve for x
    x = 1,780,145,926.85/56,548.30
  6. Step 6: Final answer
    x = 31,480.10

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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.