Home / 66,113.08-91,250.42-40,632.80

Finding the Fourth Proportional to 66,113.08, 91,250.42 and 40,632.80

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Solution

The fourth proportional to 66,113.08, 91,250.42 and 40,632.80 is: 56,082.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.08 : 91,250.42 = 40,632.80 : x
  2. Step 2: Convert to fraction form
    66,113.08/91,250.42 = 40,632.80/x
  3. Step 3: Cross multiply
    66,113.08x = 91,250.42 × 40,632.80
  4. Step 4: Simplify right side
    66,113.08x = 3,707,759,406.36
  5. Step 5: Solve for x
    x = 3,707,759,406.36/66,113.08
  6. Step 6: Final answer
    x = 56,082.09

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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.