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Finding the Fourth Proportional to 80,018.40, 119,768.40 and 62,392.80

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Solution

The fourth proportional to 80,018.40, 119,768.40 and 62,392.80 is: 93,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,018.40 : 119,768.40 = 62,392.80 : x
  2. Step 2: Convert to fraction form
    80,018.40/119,768.40 = 62,392.80/x
  3. Step 3: Cross multiply
    80,018.40x = 119,768.40 × 62,392.80
  4. Step 4: Simplify right side
    80,018.40x = 7,472,685,827.52
  5. Step 5: Solve for x
    x = 7,472,685,827.52/80,018.40
  6. Step 6: Final answer
    x = 93,387.09

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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.