Home / 75,630.24-113,379.48-54,518.40

Finding the Fourth Proportional to 75,630.24, 113,379.48 and 54,518.40

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Solution

The fourth proportional to 75,630.24, 113,379.48 and 54,518.40 is: 81,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,630.24 : 113,379.48 = 54,518.40 : x
  2. Step 2: Convert to fraction form
    75,630.24/113,379.48 = 54,518.40/x
  3. Step 3: Cross multiply
    75,630.24x = 113,379.48 × 54,518.40
  4. Step 4: Simplify right side
    75,630.24x = 6,181,267,842.43
  5. Step 5: Solve for x
    x = 6,181,267,842.43/75,630.24
  6. Step 6: Final answer
    x = 81,730.11

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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.