Home / 66,330.96-91,534.59-39,467.31

Finding the Fourth Proportional to 66,330.96, 91,534.59 and 39,467.31

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Solution

The fourth proportional to 66,330.96, 91,534.59 and 39,467.31 is: 54,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,330.96 : 91,534.59 = 39,467.31 : x
  2. Step 2: Convert to fraction form
    66,330.96/91,534.59 = 39,467.31/x
  3. Step 3: Cross multiply
    66,330.96x = 91,534.59 × 39,467.31
  4. Step 4: Simplify right side
    66,330.96x = 3,612,624,039.25
  5. Step 5: Solve for x
    x = 3,612,624,039.25/66,330.96
  6. Step 6: Final answer
    x = 54,463.62

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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.