Home / 85,543.62-128,204.45-38,091.19

Finding the Fourth Proportional to 85,543.62, 128,204.45 and 38,091.19

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Solution

The fourth proportional to 85,543.62, 128,204.45 and 38,091.19 is: 57,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,543.62 : 128,204.45 = 38,091.19 : x
  2. Step 2: Convert to fraction form
    85,543.62/128,204.45 = 38,091.19/x
  3. Step 3: Cross multiply
    85,543.62x = 128,204.45 × 38,091.19
  4. Step 4: Simplify right side
    85,543.62x = 4,883,459,422.77
  5. Step 5: Solve for x
    x = 4,883,459,422.77/85,543.62
  6. Step 6: Final answer
    x = 57,087.36

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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.