Home / 79,315.20-109,460.54-45,328.70

Finding the Fourth Proportional to 79,315.20, 109,460.54 and 45,328.70

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Solution

The fourth proportional to 79,315.20, 109,460.54 and 45,328.70 is: 62,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.20 : 109,460.54 = 45,328.70 : x
  2. Step 2: Convert to fraction form
    79,315.20/109,460.54 = 45,328.70/x
  3. Step 3: Cross multiply
    79,315.20x = 109,460.54 × 45,328.70
  4. Step 4: Simplify right side
    79,315.20x = 4,961,703,979.50
  5. Step 5: Solve for x
    x = 4,961,703,979.50/79,315.20
  6. Step 6: Final answer
    x = 62,556.79

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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.