Home / 51,354.60-77,039.10-20,182.60

Finding the Fourth Proportional to 51,354.60, 77,039.10 and 20,182.60

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Solution

The fourth proportional to 51,354.60, 77,039.10 and 20,182.60 is: 30,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,354.60 : 77,039.10 = 20,182.60 : x
  2. Step 2: Convert to fraction form
    51,354.60/77,039.10 = 20,182.60/x
  3. Step 3: Cross multiply
    51,354.60x = 77,039.10 × 20,182.60
  4. Step 4: Simplify right side
    51,354.60x = 1,554,849,339.66
  5. Step 5: Solve for x
    x = 1,554,849,339.66/51,354.60
  6. Step 6: Final answer
    x = 30,276.73

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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.