Home / 75,170.18-103,684.90-48,346.62

Finding the Fourth Proportional to 75,170.18, 103,684.90 and 48,346.62

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Solution

The fourth proportional to 75,170.18, 103,684.90 and 48,346.62 is: 66,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,170.18 : 103,684.90 = 48,346.62 : x
  2. Step 2: Convert to fraction form
    75,170.18/103,684.90 = 48,346.62/x
  3. Step 3: Cross multiply
    75,170.18x = 103,684.90 × 48,346.62
  4. Step 4: Simplify right side
    75,170.18x = 5,012,814,460.04
  5. Step 5: Solve for x
    x = 5,012,814,460.04/75,170.18
  6. Step 6: Final answer
    x = 66,686.21

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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.