Home / 79,043.90-109,050.03-48,776.63

Finding the Fourth Proportional to 79,043.90, 109,050.03 and 48,776.63

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Solution

The fourth proportional to 79,043.90, 109,050.03 and 48,776.63 is: 67,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,043.90 : 109,050.03 = 48,776.63 : x
  2. Step 2: Convert to fraction form
    79,043.90/109,050.03 = 48,776.63/x
  3. Step 3: Cross multiply
    79,043.90x = 109,050.03 × 48,776.63
  4. Step 4: Simplify right side
    79,043.90x = 5,319,092,419.55
  5. Step 5: Solve for x
    x = 5,319,092,419.55/79,043.90
  6. Step 6: Final answer
    x = 67,292.89

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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.