Home / 66,657.24-91,987.08-38,362.92

Finding the Fourth Proportional to 66,657.24, 91,987.08 and 38,362.92

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Solution

The fourth proportional to 66,657.24, 91,987.08 and 38,362.92 is: 52,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,657.24 : 91,987.08 = 38,362.92 : x
  2. Step 2: Convert to fraction form
    66,657.24/91,987.08 = 38,362.92/x
  3. Step 3: Cross multiply
    66,657.24x = 91,987.08 × 38,362.92
  4. Step 4: Simplify right side
    66,657.24x = 3,528,892,991.07
  5. Step 5: Solve for x
    x = 3,528,892,991.07/66,657.24
  6. Step 6: Final answer
    x = 52,940.88

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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.