Home / 85,575.22-128,370.22-22,395.08

Finding the Fourth Proportional to 85,575.22, 128,370.22 and 22,395.08

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Solution

The fourth proportional to 85,575.22, 128,370.22 and 22,395.08 is: 33,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,575.22 : 128,370.22 = 22,395.08 : x
  2. Step 2: Convert to fraction form
    85,575.22/128,370.22 = 22,395.08/x
  3. Step 3: Cross multiply
    85,575.22x = 128,370.22 × 22,395.08
  4. Step 4: Simplify right side
    85,575.22x = 2,874,861,611.46
  5. Step 5: Solve for x
    x = 2,874,861,611.46/85,575.22
  6. Step 6: Final answer
    x = 33,594.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.