Home / 48,909.90-73,170.45-42,408.30

Finding the Fourth Proportional to 48,909.90, 73,170.45 and 42,408.30

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Solution

The fourth proportional to 48,909.90, 73,170.45 and 42,408.30 is: 63,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,909.90 : 73,170.45 = 42,408.30 : x
  2. Step 2: Convert to fraction form
    48,909.90/73,170.45 = 42,408.30/x
  3. Step 3: Cross multiply
    48,909.90x = 73,170.45 × 42,408.30
  4. Step 4: Simplify right side
    48,909.90x = 3,103,034,394.74
  5. Step 5: Solve for x
    x = 3,103,034,394.74/48,909.90
  6. Step 6: Final answer
    x = 63,443.89

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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.