Home / 66,025.50-91,115.34-37,731.12

Finding the Fourth Proportional to 66,025.50, 91,115.34 and 37,731.12

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Solution

The fourth proportional to 66,025.50, 91,115.34 and 37,731.12 is: 52,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,025.50 : 91,115.34 = 37,731.12 : x
  2. Step 2: Convert to fraction form
    66,025.50/91,115.34 = 37,731.12/x
  3. Step 3: Cross multiply
    66,025.50x = 91,115.34 × 37,731.12
  4. Step 4: Simplify right side
    66,025.50x = 3,437,883,827.38
  5. Step 5: Solve for x
    x = 3,437,883,827.38/66,025.50
  6. Step 6: Final answer
    x = 52,069.03

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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.