Home / 79,319.08-109,453.38-45,320.80

Finding the Fourth Proportional to 79,319.08, 109,453.38 and 45,320.80

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Solution

The fourth proportional to 79,319.08, 109,453.38 and 45,320.80 is: 62,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,319.08 : 109,453.38 = 45,320.80 : x
  2. Step 2: Convert to fraction form
    79,319.08/109,453.38 = 45,320.80/x
  3. Step 3: Cross multiply
    79,319.08x = 109,453.38 × 45,320.80
  4. Step 4: Simplify right side
    79,319.08x = 4,960,514,505.94
  5. Step 5: Solve for x
    x = 4,960,514,505.94/79,319.08
  6. Step 6: Final answer
    x = 62,538.73

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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.