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Finding the Fourth Proportional to 64,075.90, 96,123.84 and 30,789.76

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Solution

The fourth proportional to 64,075.90, 96,123.84 and 30,789.76 is: 46,189.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,075.90 : 96,123.84 = 30,789.76 : x
  2. Step 2: Convert to fraction form
    64,075.90/96,123.84 = 30,789.76/x
  3. Step 3: Cross multiply
    64,075.90x = 96,123.84 × 30,789.76
  4. Step 4: Simplify right side
    64,075.90x = 2,959,629,963.88
  5. Step 5: Solve for x
    x = 2,959,629,963.88/64,075.90
  6. Step 6: Final answer
    x = 46,189.44

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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.