Home / 75,611.64-104,337.28-43,782.72

Finding the Fourth Proportional to 75,611.64, 104,337.28 and 43,782.72

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Solution

The fourth proportional to 75,611.64, 104,337.28 and 43,782.72 is: 60,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,611.64 : 104,337.28 = 43,782.72 : x
  2. Step 2: Convert to fraction form
    75,611.64/104,337.28 = 43,782.72/x
  3. Step 3: Cross multiply
    75,611.64x = 104,337.28 × 43,782.72
  4. Step 4: Simplify right side
    75,611.64x = 4,568,169,915.80
  5. Step 5: Solve for x
    x = 4,568,169,915.80/75,611.64
  6. Step 6: Final answer
    x = 60,416.23

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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.