Home / 85,618.52-128,433.40-22,440.19

Finding the Fourth Proportional to 85,618.52, 128,433.40 and 22,440.19

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Solution

The fourth proportional to 85,618.52, 128,433.40 and 22,440.19 is: 33,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,618.52 : 128,433.40 = 22,440.19 : x
  2. Step 2: Convert to fraction form
    85,618.52/128,433.40 = 22,440.19/x
  3. Step 3: Cross multiply
    85,618.52x = 128,433.40 × 22,440.19
  4. Step 4: Simplify right side
    85,618.52x = 2,882,069,761.97
  5. Step 5: Solve for x
    x = 2,882,069,761.97/85,618.52
  6. Step 6: Final answer
    x = 33,661.76

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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.