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Finding the Fourth Proportional to 40,075.70, 60,111.72 and 19,025.82

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Solution

The fourth proportional to 40,075.70, 60,111.72 and 19,025.82 is: 28,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,075.70 : 60,111.72 = 19,025.82 : x
  2. Step 2: Convert to fraction form
    40,075.70/60,111.72 = 19,025.82/x
  3. Step 3: Cross multiply
    40,075.70x = 60,111.72 × 19,025.82
  4. Step 4: Simplify right side
    40,075.70x = 1,143,674,764.61
  5. Step 5: Solve for x
    x = 1,143,674,764.61/40,075.70
  6. Step 6: Final answer
    x = 28,537.86

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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.