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Finding the Fourth Proportional to 84,252, 116,301.68 and 57,421.62

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Solution

The fourth proportional to 84,252, 116,301.68 and 57,421.62 is: 79,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,252 : 116,301.68 = 57,421.62 : x
  2. Step 2: Convert to fraction form
    84,252/116,301.68 = 57,421.62/x
  3. Step 3: Cross multiply
    84,252x = 116,301.68 × 57,421.62
  4. Step 4: Simplify right side
    84,252x = 6,678,230,874.32
  5. Step 5: Solve for x
    x = 6,678,230,874.32/84,252
  6. Step 6: Final answer
    x = 79,264.95

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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.