Home / 66,270.49-91,327.30-47,374.81

Finding the Fourth Proportional to 66,270.49, 91,327.30 and 47,374.81

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Solution

The fourth proportional to 66,270.49, 91,327.30 and 47,374.81 is: 65,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,270.49 : 91,327.30 = 47,374.81 : x
  2. Step 2: Convert to fraction form
    66,270.49/91,327.30 = 47,374.81/x
  3. Step 3: Cross multiply
    66,270.49x = 91,327.30 × 47,374.81
  4. Step 4: Simplify right side
    66,270.49x = 4,326,613,485.31
  5. Step 5: Solve for x
    x = 4,326,613,485.31/66,270.49
  6. Step 6: Final answer
    x = 65,287.18

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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.