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Finding the Fourth Proportional to 51,607.60, 77,400.60 and 25,331.20

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Solution

The fourth proportional to 51,607.60, 77,400.60 and 25,331.20 is: 37,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,607.60 : 77,400.60 = 25,331.20 : x
  2. Step 2: Convert to fraction form
    51,607.60/77,400.60 = 25,331.20/x
  3. Step 3: Cross multiply
    51,607.60x = 77,400.60 × 25,331.20
  4. Step 4: Simplify right side
    51,607.60x = 1,960,650,078.72
  5. Step 5: Solve for x
    x = 1,960,650,078.72/51,607.60
  6. Step 6: Final answer
    x = 37,991.50

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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.