Home / 75,017.35-103,357.79-49,478.65

Finding the Fourth Proportional to 75,017.35, 103,357.79 and 49,478.65

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Solution

The fourth proportional to 75,017.35, 103,357.79 and 49,478.65 is: 68,170.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,017.35 : 103,357.79 = 49,478.65 : x
  2. Step 2: Convert to fraction form
    75,017.35/103,357.79 = 49,478.65/x
  3. Step 3: Cross multiply
    75,017.35x = 103,357.79 × 49,478.65
  4. Step 4: Simplify right side
    75,017.35x = 5,114,003,668.79
  5. Step 5: Solve for x
    x = 5,114,003,668.79/75,017.35
  6. Step 6: Final answer
    x = 68,170.95

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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.