Home / 79,312.13-109,460.46-45,778.13

Finding the Fourth Proportional to 79,312.13, 109,460.46 and 45,778.13

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Solution

The fourth proportional to 79,312.13, 109,460.46 and 45,778.13 is: 63,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,312.13 : 109,460.46 = 45,778.13 : x
  2. Step 2: Convert to fraction form
    79,312.13/109,460.46 = 45,778.13/x
  3. Step 3: Cross multiply
    79,312.13x = 109,460.46 × 45,778.13
  4. Step 4: Simplify right side
    79,312.13x = 5,010,894,620.44
  5. Step 5: Solve for x
    x = 5,010,894,620.44/79,312.13
  6. Step 6: Final answer
    x = 63,179.43

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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.