Home / 66,087.51-91,205.20-37,407.12

Finding the Fourth Proportional to 66,087.51, 91,205.20 and 37,407.12

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Solution

The fourth proportional to 66,087.51, 91,205.20 and 37,407.12 is: 51,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.51 : 91,205.20 = 37,407.12 : x
  2. Step 2: Convert to fraction form
    66,087.51/91,205.20 = 37,407.12/x
  3. Step 3: Cross multiply
    66,087.51x = 91,205.20 × 37,407.12
  4. Step 4: Simplify right side
    66,087.51x = 3,411,723,861.02
  5. Step 5: Solve for x
    x = 3,411,723,861.02/66,087.51
  6. Step 6: Final answer
    x = 51,624.34

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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.