Home / 47,002.20-64,840.68-28,135.68

Finding the Fourth Proportional to 47,002.20, 64,840.68 and 28,135.68

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Solution

The fourth proportional to 47,002.20, 64,840.68 and 28,135.68 is: 38,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,002.20 : 64,840.68 = 28,135.68 : x
  2. Step 2: Convert to fraction form
    47,002.20/64,840.68 = 28,135.68/x
  3. Step 3: Cross multiply
    47,002.20x = 64,840.68 × 28,135.68
  4. Step 4: Simplify right side
    47,002.20x = 1,824,336,623.46
  5. Step 5: Solve for x
    x = 1,824,336,623.46/47,002.20
  6. Step 6: Final answer
    x = 38,813.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.