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Finding the Fourth Proportional to 79,830.70, 119,746.03 and 27,240.18

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Solution

The fourth proportional to 79,830.70, 119,746.03 and 27,240.18 is: 40,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,830.70 : 119,746.03 = 27,240.18 : x
  2. Step 2: Convert to fraction form
    79,830.70/119,746.03 = 27,240.18/x
  3. Step 3: Cross multiply
    79,830.70x = 119,746.03 × 27,240.18
  4. Step 4: Simplify right side
    79,830.70x = 3,261,903,411.49
  5. Step 5: Solve for x
    x = 3,261,903,411.49/79,830.70
  6. Step 6: Final answer
    x = 40,860.26

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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.