Home / 66,470.22-91,744.65-38,192.31

Finding the Fourth Proportional to 66,470.22, 91,744.65 and 38,192.31

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Solution

The fourth proportional to 66,470.22, 91,744.65 and 38,192.31 is: 52,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.22 : 91,744.65 = 38,192.31 : x
  2. Step 2: Convert to fraction form
    66,470.22/91,744.65 = 38,192.31/x
  3. Step 3: Cross multiply
    66,470.22x = 91,744.65 × 38,192.31
  4. Step 4: Simplify right side
    66,470.22x = 3,503,940,113.64
  5. Step 5: Solve for x
    x = 3,503,940,113.64/66,470.22
  6. Step 6: Final answer
    x = 52,714.44

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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.