Home / 51,788.64-77,687.04-18,507.36

Finding the Fourth Proportional to 51,788.64, 77,687.04 and 18,507.36

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Solution

The fourth proportional to 51,788.64, 77,687.04 and 18,507.36 is: 27,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,788.64 : 77,687.04 = 18,507.36 : x
  2. Step 2: Convert to fraction form
    51,788.64/77,687.04 = 18,507.36/x
  3. Step 3: Cross multiply
    51,788.64x = 77,687.04 × 18,507.36
  4. Step 4: Simplify right side
    51,788.64x = 1,437,782,016.61
  5. Step 5: Solve for x
    x = 1,437,782,016.61/51,788.64
  6. Step 6: Final answer
    x = 27,762.50

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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.