Home / 79,315.85-109,453.91-45,322.18

Finding the Fourth Proportional to 79,315.85, 109,453.91 and 45,322.18

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Solution

The fourth proportional to 79,315.85, 109,453.91 and 45,322.18 is: 62,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.85 : 109,453.91 = 45,322.18 : x
  2. Step 2: Convert to fraction form
    79,315.85/109,453.91 = 45,322.18/x
  3. Step 3: Cross multiply
    79,315.85x = 109,453.91 × 45,322.18
  4. Step 4: Simplify right side
    79,315.85x = 4,960,689,310.48
  5. Step 5: Solve for x
    x = 4,960,689,310.48/79,315.85
  6. Step 6: Final answer
    x = 62,543.48

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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.