Home / 66,515.58-91,807.26-38,237.70

Finding the Fourth Proportional to 66,515.58, 91,807.26 and 38,237.70

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Solution

The fourth proportional to 66,515.58, 91,807.26 and 38,237.70 is: 52,777.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.58 : 91,807.26 = 38,237.70 : x
  2. Step 2: Convert to fraction form
    66,515.58/91,807.26 = 38,237.70/x
  3. Step 3: Cross multiply
    66,515.58x = 91,807.26 × 38,237.70
  4. Step 4: Simplify right side
    66,515.58x = 3,510,498,465.70
  5. Step 5: Solve for x
    x = 3,510,498,465.70/66,515.58
  6. Step 6: Final answer
    x = 52,777.09

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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.