Home / 84,428.17-116,460.10-55,748.09

Finding the Fourth Proportional to 84,428.17, 116,460.10 and 55,748.09

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Solution

The fourth proportional to 84,428.17, 116,460.10 and 55,748.09 is: 76,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,428.17 : 116,460.10 = 55,748.09 : x
  2. Step 2: Convert to fraction form
    84,428.17/116,460.10 = 55,748.09/x
  3. Step 3: Cross multiply
    84,428.17x = 116,460.10 × 55,748.09
  4. Step 4: Simplify right side
    84,428.17x = 6,492,428,136.21
  5. Step 5: Solve for x
    x = 6,492,428,136.21/84,428.17
  6. Step 6: Final answer
    x = 76,898.84

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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.