Home / 66,549.07-91,838.82-39,707.29

Finding the Fourth Proportional to 66,549.07, 91,838.82 and 39,707.29

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Solution

The fourth proportional to 66,549.07, 91,838.82 and 39,707.29 is: 54,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549.07 : 91,838.82 = 39,707.29 : x
  2. Step 2: Convert to fraction form
    66,549.07/91,838.82 = 39,707.29/x
  3. Step 3: Cross multiply
    66,549.07x = 91,838.82 × 39,707.29
  4. Step 4: Simplify right side
    66,549.07x = 3,646,670,659.00
  5. Step 5: Solve for x
    x = 3,646,670,659.00/66,549.07
  6. Step 6: Final answer
    x = 54,796.72

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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.