Home / 66,455.97-91,711.53-37,776.83

Finding the Fourth Proportional to 66,455.97, 91,711.53 and 37,776.83

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Solution

The fourth proportional to 66,455.97, 91,711.53 and 37,776.83 is: 52,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,455.97 : 91,711.53 = 37,776.83 : x
  2. Step 2: Convert to fraction form
    66,455.97/91,711.53 = 37,776.83/x
  3. Step 3: Cross multiply
    66,455.97x = 91,711.53 × 37,776.83
  4. Step 4: Simplify right side
    66,455.97x = 3,464,570,419.29
  5. Step 5: Solve for x
    x = 3,464,570,419.29/66,455.97
  6. Step 6: Final answer
    x = 52,133.32

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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.