Home / 79,377.08-109,540.22-45,386.21

Finding the Fourth Proportional to 79,377.08, 109,540.22 and 45,386.21

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Solution

The fourth proportional to 79,377.08, 109,540.22 and 45,386.21 is: 62,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,377.08 : 109,540.22 = 45,386.21 : x
  2. Step 2: Convert to fraction form
    79,377.08/109,540.22 = 45,386.21/x
  3. Step 3: Cross multiply
    79,377.08x = 109,540.22 × 45,386.21
  4. Step 4: Simplify right side
    79,377.08x = 4,971,615,428.37
  5. Step 5: Solve for x
    x = 4,971,615,428.37/79,377.08
  6. Step 6: Final answer
    x = 62,632.88

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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.