Home / 52,919.20-79,362.40-21,327.98

Finding the Fourth Proportional to 52,919.20, 79,362.40 and 21,327.98

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Solution

The fourth proportional to 52,919.20, 79,362.40 and 21,327.98 is: 31,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,919.20 : 79,362.40 = 21,327.98 : x
  2. Step 2: Convert to fraction form
    52,919.20/79,362.40 = 21,327.98/x
  3. Step 3: Cross multiply
    52,919.20x = 79,362.40 × 21,327.98
  4. Step 4: Simplify right side
    52,919.20x = 1,692,639,679.95
  5. Step 5: Solve for x
    x = 1,692,639,679.95/52,919.20
  6. Step 6: Final answer
    x = 31,985.36

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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.