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Finding the Fourth Proportional to 80,086.42, 110,495.01 and 55,886.74

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Solution

The fourth proportional to 80,086.42, 110,495.01 and 55,886.74 is: 77,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,086.42 : 110,495.01 = 55,886.74 : x
  2. Step 2: Convert to fraction form
    80,086.42/110,495.01 = 55,886.74/x
  3. Step 3: Cross multiply
    80,086.42x = 110,495.01 × 55,886.74
  4. Step 4: Simplify right side
    80,086.42x = 6,175,205,895.17
  5. Step 5: Solve for x
    x = 6,175,205,895.17/80,086.42
  6. Step 6: Final answer
    x = 77,106.78

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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.