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Finding the Fourth Proportional to 77,074.35, 106,354.04 and 43,540.35

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Solution

The fourth proportional to 77,074.35, 106,354.04 and 43,540.35 is: 60,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,074.35 : 106,354.04 = 43,540.35 : x
  2. Step 2: Convert to fraction form
    77,074.35/106,354.04 = 43,540.35/x
  3. Step 3: Cross multiply
    77,074.35x = 106,354.04 × 43,540.35
  4. Step 4: Simplify right side
    77,074.35x = 4,630,692,125.51
  5. Step 5: Solve for x
    x = 4,630,692,125.51/77,074.35
  6. Step 6: Final answer
    x = 60,080.85

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1.5x scale

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.