Home / 75,019.53-103,478.16-48,119.43

Finding the Fourth Proportional to 75,019.53, 103,478.16 and 48,119.43

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Solution

The fourth proportional to 75,019.53, 103,478.16 and 48,119.43 is: 66,373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,019.53 : 103,478.16 = 48,119.43 : x
  2. Step 2: Convert to fraction form
    75,019.53/103,478.16 = 48,119.43/x
  3. Step 3: Cross multiply
    75,019.53x = 103,478.16 × 48,119.43
  4. Step 4: Simplify right side
    75,019.53x = 4,979,310,076.65
  5. Step 5: Solve for x
    x = 4,979,310,076.65/75,019.53
  6. Step 6: Final answer
    x = 66,373.52

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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.