Home / 66,659.24-91,989.84-38,364.92

Finding the Fourth Proportional to 66,659.24, 91,989.84 and 38,364.92

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Solution

The fourth proportional to 66,659.24, 91,989.84 and 38,364.92 is: 52,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,659.24 : 91,989.84 = 38,364.92 : x
  2. Step 2: Convert to fraction form
    66,659.24/91,989.84 = 38,364.92/x
  3. Step 3: Cross multiply
    66,659.24x = 91,989.84 × 38,364.92
  4. Step 4: Simplify right side
    66,659.24x = 3,529,182,852.41
  5. Step 5: Solve for x
    x = 3,529,182,852.41/66,659.24
  6. Step 6: Final answer
    x = 52,943.64

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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.