Home / 75,017.85-103,358.48-49,479.15

Finding the Fourth Proportional to 75,017.85, 103,358.48 and 49,479.15

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Solution

The fourth proportional to 75,017.85, 103,358.48 and 49,479.15 is: 68,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,017.85 : 103,358.48 = 49,479.15 : x
  2. Step 2: Convert to fraction form
    75,017.85/103,358.48 = 49,479.15/x
  3. Step 3: Cross multiply
    75,017.85x = 103,358.48 × 49,479.15
  4. Step 4: Simplify right side
    75,017.85x = 5,114,089,488.30
  5. Step 5: Solve for x
    x = 5,114,089,488.30/75,017.85
  6. Step 6: Final answer
    x = 68,171.63

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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.