Home / 53,119.28-79,671.02-19,835.16

Finding the Fourth Proportional to 53,119.28, 79,671.02 and 19,835.16

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Solution

The fourth proportional to 53,119.28, 79,671.02 and 19,835.16 is: 29,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,119.28 : 79,671.02 = 19,835.16 : x
  2. Step 2: Convert to fraction form
    53,119.28/79,671.02 = 19,835.16/x
  3. Step 3: Cross multiply
    53,119.28x = 79,671.02 × 19,835.16
  4. Step 4: Simplify right side
    53,119.28x = 1,580,287,329.89
  5. Step 5: Solve for x
    x = 1,580,287,329.89/53,119.28
  6. Step 6: Final answer
    x = 29,749.79

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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.