Home / 51,809.60-77,695.32-18,520.64

Finding the Fourth Proportional to 51,809.60, 77,695.32 and 18,520.64

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Solution

The fourth proportional to 51,809.60, 77,695.32 and 18,520.64 is: 27,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,809.60 : 77,695.32 = 18,520.64 : x
  2. Step 2: Convert to fraction form
    51,809.60/77,695.32 = 18,520.64/x
  3. Step 3: Cross multiply
    51,809.60x = 77,695.32 × 18,520.64
  4. Step 4: Simplify right side
    51,809.60x = 1,438,967,051.40
  5. Step 5: Solve for x
    x = 1,438,967,051.40/51,809.60
  6. Step 6: Final answer
    x = 27,774.14

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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.