Home / 66,086.05-91,196.28-35,870.72

Finding the Fourth Proportional to 66,086.05, 91,196.28 and 35,870.72

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Solution

The fourth proportional to 66,086.05, 91,196.28 and 35,870.72 is: 49,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086.05 : 91,196.28 = 35,870.72 : x
  2. Step 2: Convert to fraction form
    66,086.05/91,196.28 = 35,870.72/x
  3. Step 3: Cross multiply
    66,086.05x = 91,196.28 × 35,870.72
  4. Step 4: Simplify right side
    66,086.05x = 3,271,276,538.41
  5. Step 5: Solve for x
    x = 3,271,276,538.41/66,086.05
  6. Step 6: Final answer
    x = 49,500.26

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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.