Home / 53,119.40-79,671.20-19,835.29

Finding the Fourth Proportional to 53,119.40, 79,671.20 and 19,835.29

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Solution

The fourth proportional to 53,119.40, 79,671.20 and 19,835.29 is: 29,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,119.40 : 79,671.20 = 19,835.29 : x
  2. Step 2: Convert to fraction form
    53,119.40/79,671.20 = 19,835.29/x
  3. Step 3: Cross multiply
    53,119.40x = 79,671.20 × 19,835.29
  4. Step 4: Simplify right side
    53,119.40x = 1,580,300,958.29
  5. Step 5: Solve for x
    x = 1,580,300,958.29/53,119.40
  6. Step 6: Final answer
    x = 29,749.98

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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.