Home / 53,211.02-79,840.96-19,933.78

Finding the Fourth Proportional to 53,211.02, 79,840.96 and 19,933.78

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Solution

The fourth proportional to 53,211.02, 79,840.96 and 19,933.78 is: 29,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,211.02 : 79,840.96 = 19,933.78 : x
  2. Step 2: Convert to fraction form
    53,211.02/79,840.96 = 19,933.78/x
  3. Step 3: Cross multiply
    53,211.02x = 79,840.96 × 19,933.78
  4. Step 4: Simplify right side
    53,211.02x = 1,591,532,131.63
  5. Step 5: Solve for x
    x = 1,591,532,131.63/53,211.02
  6. Step 6: Final answer
    x = 29,909.82

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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.