Home / 66,075.38-91,161.69-37,760.90

Finding the Fourth Proportional to 66,075.38, 91,161.69 and 37,760.90

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Solution

The fourth proportional to 66,075.38, 91,161.69 and 37,760.90 is: 52,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.38 : 91,161.69 = 37,760.90 : x
  2. Step 2: Convert to fraction form
    66,075.38/91,161.69 = 37,760.90/x
  3. Step 3: Cross multiply
    66,075.38x = 91,161.69 × 37,760.90
  4. Step 4: Simplify right side
    66,075.38x = 3,442,347,459.92
  5. Step 5: Solve for x
    x = 3,442,347,459.92/66,075.38
  6. Step 6: Final answer
    x = 52,097.28

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1.5x scale

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.