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Finding the Fourth Proportional to 80,042.42, 120,059.27 and 40,598.49

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Solution

The fourth proportional to 80,042.42, 120,059.27 and 40,598.49 is: 60,895.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,042.42 : 120,059.27 = 40,598.49 : x
  2. Step 2: Convert to fraction form
    80,042.42/120,059.27 = 40,598.49/x
  3. Step 3: Cross multiply
    80,042.42x = 120,059.27 × 40,598.49
  4. Step 4: Simplify right side
    80,042.42x = 4,874,224,869.51
  5. Step 5: Solve for x
    x = 4,874,224,869.51/80,042.42
  6. Step 6: Final answer
    x = 60,895.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.