Home / 97,123.97-145,412.04-51,428.12

Finding the Fourth Proportional to 97,123.97, 145,412.04 and 51,428.12

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Solution

The fourth proportional to 97,123.97, 145,412.04 and 51,428.12 is: 76,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,123.97 : 145,412.04 = 51,428.12 : x
  2. Step 2: Convert to fraction form
    97,123.97/145,412.04 = 51,428.12/x
  3. Step 3: Cross multiply
    97,123.97x = 145,412.04 × 51,428.12
  4. Step 4: Simplify right side
    97,123.97x = 7,478,268,126.30
  5. Step 5: Solve for x
    x = 7,478,268,126.30/97,123.97
  6. Step 6: Final answer
    x = 76,997.14

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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.