Home / 79,228.20-109,337.88-45,242.20

Finding the Fourth Proportional to 79,228.20, 109,337.88 and 45,242.20

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Solution

The fourth proportional to 79,228.20, 109,337.88 and 45,242.20 is: 62,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,228.20 : 109,337.88 = 45,242.20 : x
  2. Step 2: Convert to fraction form
    79,228.20/109,337.88 = 45,242.20/x
  3. Step 3: Cross multiply
    79,228.20x = 109,337.88 × 45,242.20
  4. Step 4: Simplify right side
    79,228.20x = 4,946,686,234.54
  5. Step 5: Solve for x
    x = 4,946,686,234.54/79,228.20
  6. Step 6: Final answer
    x = 62,435.93

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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.