Home / 79,320.63-109,481.52-53,869.41

Finding the Fourth Proportional to 79,320.63, 109,481.52 and 53,869.41

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Solution

The fourth proportional to 79,320.63, 109,481.52 and 53,869.41 is: 74,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,320.63 : 109,481.52 = 53,869.41 : x
  2. Step 2: Convert to fraction form
    79,320.63/109,481.52 = 53,869.41/x
  3. Step 3: Cross multiply
    79,320.63x = 109,481.52 × 53,869.41
  4. Step 4: Simplify right side
    79,320.63x = 5,897,704,888.30
  5. Step 5: Solve for x
    x = 5,897,704,888.30/79,320.63
  6. Step 6: Final answer
    x = 74,352.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.