Home / 65,075.62-97,641.41-20,705.98

Finding the Fourth Proportional to 65,075.62, 97,641.41 and 20,705.98

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Solution

The fourth proportional to 65,075.62, 97,641.41 and 20,705.98 is: 31,067.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,075.62 : 97,641.41 = 20,705.98 : x
  2. Step 2: Convert to fraction form
    65,075.62/97,641.41 = 20,705.98/x
  3. Step 3: Cross multiply
    65,075.62x = 97,641.41 × 20,705.98
  4. Step 4: Simplify right side
    65,075.62x = 2,021,761,082.63
  5. Step 5: Solve for x
    x = 2,021,761,082.63/65,075.62
  6. Step 6: Final answer
    x = 31,067.87

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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.