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Finding the Fourth Proportional to 77,699.92, 116,610.84 and 54,173.20

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Solution

The fourth proportional to 77,699.92, 116,610.84 and 54,173.20 is: 81,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,699.92 : 116,610.84 = 54,173.20 : x
  2. Step 2: Convert to fraction form
    77,699.92/116,610.84 = 54,173.20/x
  3. Step 3: Cross multiply
    77,699.92x = 116,610.84 × 54,173.20
  4. Step 4: Simplify right side
    77,699.92x = 6,317,182,357.49
  5. Step 5: Solve for x
    x = 6,317,182,357.49/77,699.92
  6. Step 6: Final answer
    x = 81,302.30

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1.5x scale

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.