Home / 51,051.60-76,577.40-19,866.60

Finding the Fourth Proportional to 51,051.60, 76,577.40 and 19,866.60

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Solution

The fourth proportional to 51,051.60, 76,577.40 and 19,866.60 is: 29,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051.60 : 76,577.40 = 19,866.60 : x
  2. Step 2: Convert to fraction form
    51,051.60/76,577.40 = 19,866.60/x
  3. Step 3: Cross multiply
    51,051.60x = 76,577.40 × 19,866.60
  4. Step 4: Simplify right side
    51,051.60x = 1,521,332,574.84
  5. Step 5: Solve for x
    x = 1,521,332,574.84/51,051.60
  6. Step 6: Final answer
    x = 29,799.90

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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.