Home / 47,077.76-70,634.96-20,764

Finding the Fourth Proportional to 47,077.76, 70,634.96 and 20,764

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Solution

The fourth proportional to 47,077.76, 70,634.96 and 20,764 is: 31,154.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,077.76 : 70,634.96 = 20,764 : x
  2. Step 2: Convert to fraction form
    47,077.76/70,634.96 = 20,764/x
  3. Step 3: Cross multiply
    47,077.76x = 70,634.96 × 20,764
  4. Step 4: Simplify right side
    47,077.76x = 1,466,664,309.44
  5. Step 5: Solve for x
    x = 1,466,664,309.44/47,077.76
  6. Step 6: Final answer
    x = 31,154.08

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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.