Home / 97,940.88-135,204.39-57,641.76

Finding the Fourth Proportional to 97,940.88, 135,204.39 and 57,641.76

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Solution

The fourth proportional to 97,940.88, 135,204.39 and 57,641.76 is: 79,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.88 : 135,204.39 = 57,641.76 : x
  2. Step 2: Convert to fraction form
    97,940.88/135,204.39 = 57,641.76/x
  3. Step 3: Cross multiply
    97,940.88x = 135,204.39 × 57,641.76
  4. Step 4: Simplify right side
    97,940.88x = 7,793,418,999.33
  5. Step 5: Solve for x
    x = 7,793,418,999.33/97,940.88
  6. Step 6: Final answer
    x = 79,572.69

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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.