Home / 66,717.87-92,075.30-42,852.03

Finding the Fourth Proportional to 66,717.87, 92,075.30 and 42,852.03

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Solution

The fourth proportional to 66,717.87, 92,075.30 and 42,852.03 is: 59,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,717.87 : 92,075.30 = 42,852.03 : x
  2. Step 2: Convert to fraction form
    66,717.87/92,075.30 = 42,852.03/x
  3. Step 3: Cross multiply
    66,717.87x = 92,075.30 × 42,852.03
  4. Step 4: Simplify right side
    66,717.87x = 3,945,613,517.86
  5. Step 5: Solve for x
    x = 3,945,613,517.86/66,717.87
  6. Step 6: Final answer
    x = 59,138.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.