Home / 66,054.74-91,115.21-39,179.24

Finding the Fourth Proportional to 66,054.74, 91,115.21 and 39,179.24

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Solution

The fourth proportional to 66,054.74, 91,115.21 and 39,179.24 is: 54,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054.74 : 91,115.21 = 39,179.24 : x
  2. Step 2: Convert to fraction form
    66,054.74/91,115.21 = 39,179.24/x
  3. Step 3: Cross multiply
    66,054.74x = 91,115.21 × 39,179.24
  4. Step 4: Simplify right side
    66,054.74x = 3,569,824,680.24
  5. Step 5: Solve for x
    x = 3,569,824,680.24/66,054.74
  6. Step 6: Final answer
    x = 54,043.43

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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.