Home / 48,909.48-67,511.16-28,765.50

Finding the Fourth Proportional to 48,909.48, 67,511.16 and 28,765.50

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Solution

The fourth proportional to 48,909.48, 67,511.16 and 28,765.50 is: 39,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,909.48 : 67,511.16 = 28,765.50 : x
  2. Step 2: Convert to fraction form
    48,909.48/67,511.16 = 28,765.50/x
  3. Step 3: Cross multiply
    48,909.48x = 67,511.16 × 28,765.50
  4. Step 4: Simplify right side
    48,909.48x = 1,941,992,272.98
  5. Step 5: Solve for x
    x = 1,941,992,272.98/48,909.48
  6. Step 6: Final answer
    x = 39,705.85

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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.