Home / 75,319.82-112,829.12-45,317.52

Finding the Fourth Proportional to 75,319.82, 112,829.12 and 45,317.52

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Solution

The fourth proportional to 75,319.82, 112,829.12 and 45,317.52 is: 67,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,319.82 : 112,829.12 = 45,317.52 : x
  2. Step 2: Convert to fraction form
    75,319.82/112,829.12 = 45,317.52/x
  3. Step 3: Cross multiply
    75,319.82x = 112,829.12 × 45,317.52
  4. Step 4: Simplify right side
    75,319.82x = 5,113,135,902.18
  5. Step 5: Solve for x
    x = 5,113,135,902.18/75,319.82
  6. Step 6: Final answer
    x = 67,885.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.