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Finding the Fourth Proportional to 80,340.32, 110,904.96 and 56,235.96

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Solution

The fourth proportional to 80,340.32, 110,904.96 and 56,235.96 is: 77,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,340.32 : 110,904.96 = 56,235.96 : x
  2. Step 2: Convert to fraction form
    80,340.32/110,904.96 = 56,235.96/x
  3. Step 3: Cross multiply
    80,340.32x = 110,904.96 × 56,235.96
  4. Step 4: Simplify right side
    80,340.32x = 6,236,846,894.36
  5. Step 5: Solve for x
    x = 6,236,846,894.36/80,340.32
  6. Step 6: Final answer
    x = 77,630.35

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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.