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Finding the Fourth Proportional to 51,606.40, 77,294.40 and 39,881.60

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Solution

The fourth proportional to 51,606.40, 77,294.40 and 39,881.60 is: 59,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,606.40 : 77,294.40 = 39,881.60 : x
  2. Step 2: Convert to fraction form
    51,606.40/77,294.40 = 39,881.60/x
  3. Step 3: Cross multiply
    51,606.40x = 77,294.40 × 39,881.60
  4. Step 4: Simplify right side
    51,606.40x = 3,082,624,343.04
  5. Step 5: Solve for x
    x = 3,082,624,343.04/51,606.40
  6. Step 6: Final answer
    x = 59,733.37

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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.