Home / 66,350.84-91,558.16-39,489.04

Finding the Fourth Proportional to 66,350.84, 91,558.16 and 39,489.04

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Solution

The fourth proportional to 66,350.84, 91,558.16 and 39,489.04 is: 54,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,350.84 : 91,558.16 = 39,489.04 : x
  2. Step 2: Convert to fraction form
    66,350.84/91,558.16 = 39,489.04/x
  3. Step 3: Cross multiply
    66,350.84x = 91,558.16 × 39,489.04
  4. Step 4: Simplify right side
    66,350.84x = 3,615,543,842.57
  5. Step 5: Solve for x
    x = 3,615,543,842.57/66,350.84
  6. Step 6: Final answer
    x = 54,491.30

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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.